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The VALUE COLLECTION MP63870 is a flat socket cap screw designed for fastening applications that require a flush or countersunk head profile. It features a 3/8-inch hex socket drive and an 82-degree flat head angle, allowing it to sit flush with or below the surface of the mating material. The screw measures 5/16-18 UNC thread by 1-1/2 inches in overall length and is manufactured from 18-8 stainless steel, providing solid corrosion resistance for both indoor and outdoor service environments. Machinists, millwrights, and maintenance technicians routinely use this fastener type in equipment assembly and structural panel work.
This flat socket cap screw suits applications where a protruding fastener head would interfere with moving parts, mating surfaces, or clearances. The 5/16-18 UNC thread standard is common in general industrial equipment, light structural assemblies, and machine component mounting. The 18-8 stainless steel construction makes it appropriate for moderately corrosive environments such as food processing equipment, marine adjacent fixtures, and outdoor mechanical assemblies. Minimum order quantity is 25 pieces per order.
Designed as an OEM-style replacement or stock fastener for any application requiring a 5/16-18 UNC flat socket cap screw with an 82-degree head angle in 18-8 stainless steel.
Installation is performed with a 3/8-inch hex key or Allen-type bit driver. Ensure the mating material is drilled and countersunk to an 82-degree included angle before driving the screw. De-energize or lock out any equipment before replacing fasteners on live machinery per applicable OSHA lockout/tagout procedures. Avoid over-torquing stainless steel fasteners, as galling can occur without appropriate anti-seize compound.
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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