Sparex Imperial Self Locking Nut 3/8in UNF High-Tensile DIN 985 | S.4958 0.01 kg
Sparex Imperial Self Locking Nut 3/8in UNF High-Tensile DIN 985 | S.4958 is backordered and will ship as soon as it is back in stock.
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Warranty Information
Warranty Information
Farming Parts provides a 1-year manufacturer's warranty on all Sparex products, ensuring reliability and peace of mind. This warranty covers manufacturing defects and is designed to protect your investment in high-quality parts.
- What’s Covered: The warranty applies to defects in materials or workmanship.
- Return Costs: Customers are responsible for the cost of returning warranty claims, except in cases where the item was recommended by our staff or incorrect.
- Claim Process: If you believe your Sparex product is defective, please contact our support team with details of the issue and proof of purchase. We will guide you through the warranty claim process.
For additional information or assistance with warranty claims, our team is always available to help. Visit our Warranty Policy Page for more details.
Delivery and Shipping
Delivery and Shipping
At Farming Parts, we strive to deliver Sparex products quickly and efficiently, using reliable shipping methods and providing full transparency throughout the process.
- Shipping Partners: We work with trusted couriers, including Royal Mail, Parcelforce, FedEx, and DHL, to ensure secure and reliable delivery.
- Tracked Services: All shipments are sent via tracked or signed-for services, so you can monitor your order’s progress.
- Stock Availability: While we stock a wide range of Sparex parts, some items may require transfer from Sparex’s warehouse to our stock before dispatch, which can extend shipping times slightly.
- Direct Dispatch: For UK addresses, we may be able to dispatch products directly from Sparex’s warehouse, reducing order processing and delivery times.
- Oversized Items: Larger items may incur additional shipping fees, which will be calculated at checkout.
- Customs & Duties: Orders shipped outside the UK may be subject to customs duties or taxes, which are the responsibility of the customer.
- Order Cancellations: Orders can be canceled anytime before dispatch. Once dispatched, cancellations are no longer possible.
For detailed delivery terms or further questions, please visit our Shipping Policy Page or contact our team. We’re here to help!
Customs Fees & Taxes
Customs Fees & Taxes
When purchasing Sparex products for international delivery, please consider the following regarding customs and taxes:
- Customs Fees: Import duties and taxes are determined by your local customs authority and are not controlled by Farming Parts.
- Customer Responsibility: Any customs fees or duties associated with your order are the responsibility of the customer.
- Unpaid Fees: If customs charges are not paid, the goods may be returned to Farming Parts in Northern Ireland. In this case, return shipping and customs costs will be deducted from your refund, along with a 25% handling fee.
- Duty Charges: These fees typically represent local taxes on imported goods and may vary by country.
If you are uncertain about potential customs fees, we recommend contacting our team before placing your order. For further assistance, we’re always here to help!
Returns Policy
Returns Policy
Farming Parts is committed to ensuring customer satisfaction with all Sparex products. Our returns process is designed to be clear and straightforward:
- Standard Returns: Returns are accepted within 14 days of receipt for unused Sparex parts and merchandise, provided they are in their original condition. All products include a 1-year manufacturer's warranty.
- Return Costs: Customers are responsible for return postage costs, except in cases involving staff-recommended parts or incorrect items.
- International Returns: Returns from outside the UK follow the same guidelines, but customers must cover courier and customs costs.
- Exclusions: Items purchased as part of a stock clearance sale are non-returnable.
For more information, visit our Returns Policy Page. If you need assistance with your return, our team is here to help!
Massey Ferguson Mens Work Clothes
| Massey Ferguson Mens Work Clothes | ||||
| International Clothing Size | EU Clothing Size | UK / US Clothing Size | Chest (cm) | Waist (cm) |
| XS | 40 - 42 | 30 - 32 | 84 - 87 | 75 - 78 |
| S | 44 - 46 | 34 - 36 | 88 - 93 | 79 - 84 |
| M | 48 - 50 | 38 - 40 | 94 - 101 | 85 - 92 |
| L | 52 - 54 | 42 - 44 | 102 - 109 | 93 - 100 |
| XL | 56 - 58 | 46 - 48 | 110 - 117 | 101 - 110 |
| 2XL | 60 - 62 | 50 - 52 | 118 - 127 | 111 - 121 |
| 3XL | 64 - 66 | 54 - 56 | 128 - 137 | 122 - 132 |
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Massey Ferguson Womens Work Clothes
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| Massey Ferguson Womens Work Clothes | ||||
| International Clothing Size | EU Clothing Size | UK / US Clothing Size | Chest (cm) | Waist (cm) |
| XS | 32 - 34 | 6 - 8 | 81 - 84 | 65 - 69 |
| S | 36 - 38 | 10 - 12 | 85 - 90 | 70 - 75 |
| M | 40 - 42 | 14 - 16 | 91 - 96 | 76 - 83 |
| L | 44 - 46 | 18 - 20 | 97 - 104 | 84 - 93 |
| XL | 48 - 50 | 22 - 24 | 105 - 112 | 94 - 103 |
| 2XL | 52 - 54 | 26 - 28 | 113 - 120 | 104 - 113 |
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Massey Ferguson Childrens Work Clothes
| Massey Ferguson Childrens Work Clothes | ||||
| Body Height (cm) | Age in Years | Chest (cm) | Waist (cm) | Leg (cm) |
| 89 - 104 | 3 - 4 | 54 - 56 | 52 - 54 | 41 - 45 |
| 110 - 116 | 5 - 6 | 57 - 61 | 55 - 56 | 46 - 52 |
| 122 - 128 | 7 - 8 | 62 - 64 | 57 - 59 | 53 - 59 |
| 134 - 140 | 9 - 10 | 65 - 71 | 60 - 64 | 60 - 65 |
| 146 - 152 | 11 - 12 | 72 - 78 | 65 - 68 | 66 - 71 |
| 158 - 164 | 13 - 14 | 79 - 86 | 69 - 73 | 72 - 76 |
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Massey Ferguson Mens Casual Wear
| Massey Ferguson Mens Casual Wear | |||||
| International Clothing Size | EU Clothing Size | UK / US Clothing Size | Chest (cm) | Waist (cm) | Body Height (cm) |
| XXS | 44 | 34 | 86 - 89 | 74 - 77 | 166 - 170 |
| XS | 46 | 36 | 90 - 93 | 78 - 81 | 168 - 173 |
| S | 48 | 38 | 94 - 97 | 82 - 85 | 171 - 176 |
| M | 50 | 40 | 98 - 101 | 86 - 89 | 174 - 179 |
| L | 52 | 42 | 102 - 105 | 90 - 94 | 177 - 182 |
| XL | 54 | 44 | 106 - 109 | 95 - 99 | 180 - 184 |
| 2XL | 56 | 46 | 110 - 113 | 100 - 104 | 182 - 186 |
| 3XL | 58 - 60 | 48 - 50 | 114 - 121 | 105 - 114 | 184 - 189 |
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Massey Ferguson Womens Casual Wear
| Massey Ferguson Womens Casual Wear | |||||
| International Clothing Size | EU Clothing Size | UK / US Clothing Size | Chest (cm) | Waist (cm) | Trouser Length (cm) |
| XS | 32 - 34 | 2 - 4 | 74 - 81 | 58 - 64 | 103 - 104 |
| S | 36 - 38 | 6 - 8 | 82 - 89 | 65 - 72 | 105 - 106 |
| M | 40 - 42 | 10 - 12 | 90 - 97 | 73 - 81 | 107 - 108 |
| L | 44 - 46 | 14 - 16 | 98 - 107 | 82 - 90 | 109 - 110 |
| XL | 48 - 50 | 18 - 20 | 108 - 119 | 91 - 102 | 111 - 112 |
| 2XL | 52 - 54 | 22 -24 | 120 - 131 | 103 - 114 | 113 - 114 |
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Massey Ferguson Childrens Casual Wear
| Massey Ferguson Childrens Casual Wear | |||
| Age in Years | Body Height (cm) | Chest (cm) | Waist (cm) |
| 1.5 - 2 | 86 - 92 | 51 - 53 | 54 - 56 |
| 3 - 4 | 98 - 104 | 55 - 59 | 57 - 61 |
| 5 - 6 | 110 - 116 | 60 - 64 | 62 - 66 |
| 7 - 8 | 122 - 128 | 65 - 69 | 67 - 71 |
| 9 - 11 | 134 - 140 | 70 - 74 | 72 - 76 |
| 12 - 14 | 146 - 152 | 75 - 79 | 77 - 81 |
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Fendt Mens Outdoors Collection
| Fendt Mens Outdoors Collection | |||
| International Clothing Size | EU Clothing Size | Chest (cm) | Waist (cm) |
| S | 46 | 94 - 97 | 83 - 86 |
| M | 48 | 98 - 101 | 87 - 90 |
| L | 50 - 52 | 102 - 109 | 91 - 98 |
| XL | 54 - 56 | 110 - 117 | 99 - 106 |
| 2XL | 58 - 60 | 119 - 127 | 109 - 118 |
| 3XL | 62 - 64 | 129 - 137 | 121 - 130 |
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Fendt Womens Outdoors Collection
| Fendt Womens Outdoors Collection | ||||
| International Clothing Size | EU Clothing Size | Chest (cm) | Waist (cm) | Hip (cm) |
| S | 36 | 86 - 89 | 71 - 74 | 95 - 98 |
| M | 38 | 90 - 93 | 75 - 78 | 99 - 102 |
| L | 40 - 42 | 94 - 101 | 79 - 86 | 103 - 110 |
| XL | 44 - 46 | 104 - 113 | 88 - 97 | 111 - 119 |
| 2XL | 48 | 116 - 119 | 100 - 103 | 121 - 124 |
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Fendt Mens Original Collection
| Fendt Mens Original Collection | |||
| International Clothing Size | EU Clothing Size | Chest (cm) | Waist (cm) |
| XS | 46 - 48 | 94 - 97 | 79 - 83 |
| S | 48 - 50 | 98 - 101 | 84 - 88 |
| M | 50 - 52 | 102 - 105 | 89 - 93 |
| L | 52 - 54 | 106 - 109 | 94 - 98 |
| XL | 54 - 56 | 110 - 113 | 99 - 103 |
| 2XL | 56 - 58 | 114 - 118 | 104 - 108 |
| 3XL | 58 - 60 | 119 - 125 | 109 - 113 |
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Fendt Womens Original Collection
| Fendt Womens Original Collection | ||||
| International Clothing Size | EU Clothing Size | Chest (cm) | Waist (cm) | Hip (cm) |
| S | 36 - 38 | 90 - 93 | 74 - 77 | 99 - 101 |
| M | 38 - 40 | 94 - 97 | 78 - 81 | 102 - 104 |
| L | 40 - 42 | 98 - 102 | 82 - 85 | 105 - 108 |
| XL | 42 - 44 | 103 - 107 | 86 - 90 | 109 - 112 |
| 2XL | 44 - 46 | 108 - 112 | 91 - 95 | 113 - 116 |
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Fendt Childrens Sizes
| Fendt Childrens Sizes | ||||
| Sizes | Age in Years | Body Height (cm) | Chest (cm) | Hip (cm) |
| 86 - 92 | 2 | 86 - 92 | 52 - 55 | 54 - 57 |
| 98 - 104 | 3 - 4 | 98 - 104 | 55 - 58 | 57 - 60 |
| 110 - 116 | 5 - 6 | 110 - 116 | 58 - 61 | 60 - 65 |
| 122 - 128 | 7 - 8 | 122 - 128 | 61 - 66 | 65 - 70 |
| 134 - 140 | 9 - 10 | 134 - 140 | 66 - 71 | 70 - 75 |
| 146 - 152 | 11 - 12 | 146 - 152 | 71 - 76 | 75 - 80 |
| 158 - 164 | 13 - 14 | 158 - 164 | 76 - 81 | 80 - 85 |
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Fendt Mens Work Clothes
| Fendt Mens Work Clothes | ||||
| International Clothing Size | EU Clothing Size | UK Clothing Size | Chest (cm) | Leg (cm) |
| XS | 40 - 42 | 28 - 29 | 82 - 84 | 79 - 80 |
| S | 44 - 46 | 30 - 32 | 88 - 92 | 80 - 81 |
| M | 48 - 50 | 33 - 34 | 96 - 100 | 82 - 83 |
| L | 52 - 54 | 36 - 38 | 104 - 108 | 84 - 85 |
| XL | 56 - 58 | 40 - 42 | 112 - 116 | 86 - 87 |
| 2XL | 60 - 62 | 44 - 46 | 120 - 124 | 88 |
| 3XL | 64 - 66 | 48 - 50 | 128 - 132 | 88 |
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Fendt Womens Work Clothes
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| Fendt Womens Work Clothes | |||||
| International Clothing Size | EU Clothing Size | UK Clothing Size | Chest (cm) | Leg (cm) | Hip (in) |
| S | 36 | 10 | 84 | 81 | 72 - 76 |
| M | 38 - 40 | 12 - 14 | 88 - 92 | 82 - 83 | 78 - 84 |
| L | 42 | 16 | 96 | 84 | 84 - 88 |
| XL | 44 - 46 | ||||
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Fendt Childrens Work Clothes
| Fendt Childrens Work Clothes | ||||
| Size | Age in Years | Body Height (cm) | Chest (cm) | Hip (in) |
| 98 - 104 | 3 - 4 | 98 - 104 | 55 | 58 - 62 |
| 110 - 116 | 5 - 6 | 110 - 116 | 58 | 60 - 64 |
| 122 - 128 | 7 - 8 | 122 - 128 | 62 | 64 - 68 |
| 134 - 140 | 9 - 10 | 134 - 140 | 67 | 66 - 70 |
| 146 - 152 | 11 - 12 | 146 - 152 | 73 | 72 - 76 |
| 158 - 164 | 13 - 14 | 158 - 164 | 79 | 74 - 78 |
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Valtra Womens Clothing
| Valtra Womens Clothing | ||||
| International Clothing Size | Product Sizing | Chest (cm) | Waist (cm) | Hip (cm) |
| XS | 34 - 36 | 82 - 85 | 65 - 67 | 88 - 91 |
| S | 36 - 38 | 86 - 89 | 68 - 71 | 92 - 95 |
| M | 38 - 40 | 90 - 93 | 72 - 75 | 96 - 99 |
| L | 40 - 42 | 94 - 97 | 76 - 79 | 100 - 103 |
| XL | 42 - 44 | 98 - 101 | 80 - 83 | 104 - 107 |
| 2XL | 44 - 46 | 102 - 105 | 84 - 87 | 108 - 111 |
| 3XL | 46 - 48 | 106 - 109 | 88 - 91 | 112 - 115 |
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Valtra Mens Clothing
| Valtra Mens Clothing | ||||
| International Clothing Size | Product Sizing | Chest (cm) | Waist (cm) | Hip (cm) |
| XS | 46 - 48 | 91 - 94 | 78 - 82 | 90 - 92 |
| S | 48 - 50 | 95 - 98 | 83 - 87 | 94 - 96 |
| M | 50 - 52 | 99 - 103 | 88 - 93 | 98 - 100 |
| L | 52 - 54 | 104 - 107 | 94 - 97 | 102 - 104 |
| XL | 54 - 56 | 108 - 111 | 98 - 103 | 106 - 108 |
| 2XL | 56 - 58 | 112 - 115 | 104 - 107 | 110 - 112 |
| 3XL | 58 - 60 | 116 - 120 | 108 - 112 | 114 - 116 |
| 4XL | 60 - 62 | 121 - 125 | 113 - 118 | 114 - 116 |
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Valtra Womens Outdoor Clothing
| Valtra Womens Outdoor Clothing | |||||
| Size / Height | Chest (cm) | Waist (cm) | Hip (cm) | Leg (cm) | Height (cm) |
| XS / 32 | 76 | 61 | 87 | 78 | 164 - 172 |
| S / 34 - 36 | 82 | 65.5 | 91.5 | 78 | 164 - 172 |
| M / 38 | 88 | 70 | 96 | 78 | 164 - 172 |
| L / 40 - 42 | 94 | 76 | 100.5 | 78 | 164 - 172 |
| XL / 44 | 100 | 82 | 106 | 78 | 164 - 172 |
| 2XL / 46 - 48 | 107 | 88.5 | 112.5 | 78 | 164 - 172 |
| 3XL / 50 | 116 | 97 | 120 | 78 | 164 - 172 |
| 4XL / 52 - 54 | 125 | 106 | 127.5 | 78 | 164 - 172 |
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Valtra Mens Outdoor Clothing
| Valtra Mens Outdoor Clothing | |||||
| Size / Height | Chest (cm) | Waist (cm) | Hip (cm) | Leg (cm) | Height (cm) |
| XS / 32 | 88 | 73 | 92 | 80 | 173 - 179 |
| S / 34 - 36 | 94 | 80.5 | 98 | 81.5 | 173 - 179 |
| M / 38 | 100 | 88 | 104 | 83 | 173 - 179 |
| L / 40 - 42 | 106 | 95.5 | 110 | 84.5 | 173 - 179 |
| XL / 44 | 112 | 103 | 116 | 86 | 173 - 179 |
| 2XL / 46 - 48 | 118 | 110.5 | 122 | 87.5 | 173 - 179 |
| 3XL / 50 | 124 | 118 | 128 | 89 | 173 - 179 |
| 4XL / 52 - 54 | 130 | 125.5 | 134 | 90.5 | 173 - 179 |
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Valtra Adults Workwear Clothing
| Valtra Adults Workwear Clothing | ||||
| Size / Height | Chest (cm) | Waist (cm) | Hip (cm) | Leg (cm) |
| XS / 40 - 42 | 82 | 65 | 86 | 79 |
| S / 44 - 46 | 90 | 75 | 94 | 81 |
| M / 48 - 50 | 98 | 85 | 102 | 83 |
| L / 52 | 104 | 93 | 108 | 84 |
| XL / 54 - 56 | 110 | 100 | 114 | 86 |
| 2XL / 58 - 60 | 118 | 110 | 122 | 87 |
| 3XL / 62 - 64 | 126 | 120 | 130 | 89 |
| 4XL / 66 - 68 | 134 | 130 | 138 | 91 |
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Valtra Childrens Clothing
| Valtra Childrens Clothing | ||||
| Age in Years | Height (cm) | Chest (cm) | Waist (cm) | International Size |
| 1 - 2 | 86 - 92 | 51 - 54 | 49 - 51 | 92 - 98 |
| 3 - 4 | 98 - 104 | 55 - 56 | 52 - 53 | 104 - 110 |
| 5 - 6 | 110 - 116 | 57 - 58 | 54 - 55 | 116 - 122 |
| 7 - 8 | 122 - 128 | 61 - 64 | 57 - 58 | 128 - 134 |
| 9 - 10 | 134 - 140 | 67 - 70 | 60 - 62 | 140 - 146 |
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Valtra Childrens Workwear
| Valtra Childrens Workwear | ||||
| Size / Height | Chest (cm) | Waist (cm) | Hip (cm) | Leg (cm) |
| 90cm | 54 | 52 | 58 | 36 |
| 100cm | 57 | 54 | 61 | 42 |
| 110cm | 60 | 56 | 64 | 48 |
| 120cm | 64 | 58 | 67 | 54 |
| 130cm | 68 | 61 | 70 | 60 |
| 140cm | 72 | 64 | 75 | 65 |
| 150cm | 78 | 67 | 80 | 71 |
Description
Description
The Sparex S.4958 Imperial Self Locking Nut is engineered for high-strength, secure fastening in agricultural, industrial, and mechanical systems. Designed to prevent loosening under vibration or torque, it delivers long-term reliability in high-performance applications.
Built to DIN 985 standards, this 3/8" UNF nut features a self-locking nylon insert for added grip and stability. Manufactured from high-tensile Grade 8.8 steel, it provides exceptional durability and resistance to shear and tension forces, even under heavy mechanical stress.
Produced by Sparex, a trusted supplier of premium agricultural and industrial components, the S.4958 nut meets strict OEM specifications for performance and consistency. It serves as a quality replacement for Massey Ferguson and Landini part number 376448X1.
Perfect for technicians, engineers, and farmers requiring dependable self-locking nuts suitable for heavy-duty machinery, agricultural implements, and vibration-prone assemblies.
Key Features
?? Built to DIN 985 specification for precision and reliability
?? 3/8" UNF thread with self-locking nylon insert for secure hold
?? High-tensile Grade 8.8 steel ensures strength and durability
?? Resists loosening under vibration and dynamic loads
?? OEM equivalent for Massey Ferguson and Landini 376448X1
?? Manufactured by Sparex for consistent, high-quality performance
?? Perfect for: Agricultural equipment, mechanical assemblies, and vibration-resistant fastenings.
Specifications
Specifications
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Manufactures Specifications
Suitable For Information
Suitable For Information
OEM Information
OEM Information
Additional Product Information
Additional Product Information
Payment & Security
Accepted Payment Methods
Your payment details are handled with the utmost security. We do not store or have access to your credit card information, ensuring your data remains safe and private.
Direct Bank Transfer
Direct bank transfer payments are available upon request. If you wish to use this method for your online order, please contact us prior to placing your order for further assistance.
