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The VALUE COLLECTION R40691109 is a hex socket cap screw designed for secure, high-torque fastening in close-clearance and precision assembly applications. Threaded 5/16-24 UNF with a 1-1/2 inch length under head, this screw accepts a 1/4 inch hex drive for installation with an Allen key or hex bit. Constructed from 18-8 stainless steel, it provides solid corrosion resistance in wet or outdoor environments. It is commonly installed by maintenance technicians, mechanical assemblers, and trade professionals working on equipment, enclosures, or structural fixtures where a flush or low-profile fastener is required.
This screw is suited for light to medium-duty mechanical assemblies in residential and commercial settings. The UNF fine thread pitch provides stronger thread engagement per inch compared to coarse thread, making it a preferred choice for tapped metal assemblies, machinery panels, and precision equipment where vibration resistance and holding strength are priorities. Installation in threaded metal or tapped holes is typical.
Designed as an OEM-style replacement or standard fastener for any assembly requiring a 5/16-24 UNF hex socket cap screw with a 1-1/2 inch length under head.
Installation is performed with a 1/4 inch hex key or hex bit driver. Ensure the mating tapped hole or nut is clean and free of debris before threading to prevent cross-threading. Apply appropriate thread lubricant or anti-seize compound when installing stainless steel fasteners into stainless steel tapped holes to prevent galling. 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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