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The Value Collection D30160-31/2 is a 3/4-10 hex head cap screw designed for general mechanical fastening in structural and equipment assembly applications. The screw measures 3.5 inches under the head, features partial threading, and is manufactured from Grade 5 steel with a zinc-plated finish for corrosion resistance. It conforms to ASME B18.2.1 dimensional standards, making it a reliable choice for applications where inch-series UNC fasteners are specified. Tradespeople and maintenance technicians working with heavy equipment, structural steel, or mechanical assemblies will find this a straightforward replacement or new-installation fastener.
This cap screw suits a wide range of industrial, commercial, and mechanical maintenance applications where 3/4-10 UNC thread engagement is required. The partial threading allows for greater shank bearing length, which is advantageous in bolted joints where clamping force distribution across the grip length matters. It is commonly installed in equipment frames, machinery mounts, and structural connections that call for Grade 5 or equivalent medium-strength fastener specifications.
Designed as a standard inch-series UNC hex head cap screw suitable for use in any application requiring a 3/4-10 thread, 3.5-inch under-head length, Grade 5 or equivalent fastener per ASME B18.2.1.
Installation is performed by maintenance technicians, millwrights, or general tradespeople using standard hex wrenches or impact tools rated for 3/4-inch fasteners. De-energize and lock out any equipment before servicing fastened assemblies. Do not substitute this fastener in applications requiring Grade 8 or higher tensile strength without engineering review. Ensure mating threads are clean and free of debris before installation to avoid galling or cross-threading.
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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