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The VALUE COLLECTION 198704 is a fully threaded hex socket cap screw designed for secure, high-strength fastening in mechanical, plumbing, and industrial assemblies. It features a 3/8-16 UNC thread size with a 1 inch length under the head and is driven by a 5/16 inch hex key. Constructed from 18-8 stainless steel, this fastener delivers corrosion resistance suitable for wet, chemical-exposure, or outdoor environments. The socket cap head style allows installation in confined spaces where a wrench or impact driver cannot access the fastener head. Trades including plumbers, pipefitters, HVAC technicians, and millwrights use this style of fastener in a wide range of field and shop applications.
This screw is appropriate for residential and commercial service work wherever a 3/8-16 UNC thread pattern is required. Common applications include equipment mounting, pipe hanger assemblies, bracket fabrication, and panel or housing fastening. The fully threaded body maximizes thread engagement across the full fastener length, making it well-suited for thin-material clamping or applications where thread engagement depth is limited. The 18-8 stainless steel grade is a standard choice for applications requiring moderate corrosion resistance without the added cost of 316-series alloys.
Designed as an OEM-style or general-service replacement fastener for any assembly specifying a 3/8-16 UNC hex socket cap screw with a 1 inch length under head.
Installation requires a properly sized 5/16 inch hex key or socket-style Allen driver. Ensure mating threads are clean and free of debris before driving to avoid cross-threading. For stainless steel fasteners, apply an appropriate anti-seize compound to the threads prior to installation to prevent galling. Follow applicable mechanical codes and equipment manufacturer torque guidelines when securing structural or pressure-bearing assemblies.
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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