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The VALUE COLLECTION R56000846 is a hex socket cap screw designed for fastening applications that demand corrosion resistance and dimensional precision. Manufactured from 316 stainless steel in an uncoated bright finish, this fastener carries a 5/16-18 UNC thread size and a 3-inch length under head. The 1/4-inch hex drive allows use with standard hex keys, Allen wrenches, and socket drivers. It is suited for maintenance, mechanical assembly, and equipment fabrication work where exposure to moisture, chemicals, or outdoor conditions is a factor. Machinists, millwrights, and general contractors regularly specify 316 stainless fasteners for these environments.
This screw is appropriate for use in industrial, marine, food-processing, and commercial mechanical assemblies where standard carbon steel fasteners would corrode. The 5/16-18 UNC coarse thread provides reliable engagement in both tapped holes and standard hex nuts. At 3 inches under head, it accommodates moderate stack-up thickness in structural or equipment-mounting applications. The bright, uncoated finish maintains the natural corrosion resistance of the 316 alloy without any additional surface treatment that could flake or wear under torque.
Designed for use in any application requiring a 5/16-18 UNC hex socket cap screw with a 3-inch length under head and a 1/4-inch hex drive in 316 stainless steel.
Install using a calibrated torque wrench or hex key sized to 1/4 inch to avoid rounding the drive socket. Ensure the tapped hole or mating nut matches the 5/16-18 UNC thread specification before installation. Do not mix stainless fasteners with dissimilar metals in environments where galvanic corrosion is a concern. Follow applicable mechanical codes and equipment manufacturer torque guidelines for the specific assembly.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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