Unbrako 5/16"-18 Thread 3" Alloy Steel Socket Cap Screw - Pk of 100- Black
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- Alloy steel is often used in applications where strength is the primary consideration, and black oxide finish offers mild corrosion resistance and lubricity
- Socket cap head is round with a flat top and a high profile that provides high strength
- Knurling on the head enhances grip for hand-turning
- Hex socket drive has a hexagonal slot that turns using an Allen key driver, permitting more compact spacing than a hex head cap screw
- Meets ASME B18.3 specifications
- The Unbrako alloy steel socket cap screw has a black oxide finish, knurled socket cap head, and hex socket drive, and meets American Society of Mechanical Engineers ASME B18.3 specifications. Alloy steel is often used in applications where strength is the primary consideration, and the black oxide finish offers mild corrosion resistance and lubricity. The knurled socket cap head is round with a flat top and a high profile that provides high strength, and installs using an internal drive system that enables more compact spacing than a hex head cap screw. Knurling on the head enhances grip for hand-turning. The hex socket drive, also known as an internal hex drive, has a hexagonal slot that requires an Allen key driver, also known as a hex key or Allen wrench.
- Material Type: Alloy Steel
- Exterior Finish: Black Oxide
- Color: Black
- Thread Style: Right Hand
- Head Diameter: 15/32 inches
- Head Height: 5/16 inches
- Overall Length: 3 inches
- Number of Items: 100
- Thread Class: 3A
- Thread Length: 1-3/8 inches
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