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🔧 Screw it right the first time — engineered for the pros who settle for nothing less!
These Hard-to-Find Fastener 12.9 socket cap screws feature a robust 4mm diameter and 40mm length, crafted from high-grade alloy steel with a plain finish. Fully threaded with an external hex socket head, they provide exceptional strength and precision for demanding applications across home, automotive, and industrial settings.










| ASIN | B003PNOQ9U |
| Brand | Aivoxe |
| Colour | plain |
| Compatible Groove Diameter | 0.7 Millimeters |
| Customer Reviews | 4.3 4.3 out of 5 stars (122) |
| Drive System | External Hex |
| Exterior Finish | Plain,Steel |
| Fastener Size | 4mm-.7 x 40mm |
| Fastener Type | Machine Screw |
| Finish Types | Plain |
| Grade Rating | Class 12.9 |
| Head Type | Socket |
| Item Diameter | 4 Millimetres |
| Item Dimensions | 6.4 x 3.7 x 3.2 Centimeters |
| Item Weight | 0.02 Pounds |
| Manufacturer | Hard-to-Find Fastener |
| Material Type | Steel |
| Maximum Shear Strength | 600 N/mm² |
| Metal Type | Alloy Steel |
| Model | 014973281625 |
| Number Of Items | 10 |
| Number of Pieces | 10 |
| Outside Diameter | 4 Millimetres |
| Part Number | SCSS1-009-10 |
| Screw Head Style | Socket |
| Screw Point Style | Round Point |
| Set Screw Thread Type | Metric |
| Size Name | 4mm-.7 x 40mm |
| Thread Class | 12.9 |
| Thread Coverage | Fully Threaded |
| Thread Size | 0.7mm |
| Thread Style | Right Hand, Coarse, Fully Threaded |
| Thread Type | UNC |
| UPC | 014973281625 |
| Unit Count | 1.0 Count |
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