Value Collection R57001093 Hex Socket Cap Screw 5/8-18

Product Description

The VALUE COLLECTION R57001093 is a 5/8-18 UNF hex socket cap screw designed for fastening applications that demand corrosion resistance and reliable clamping strength. Manufactured from 18-8 stainless steel with a bright, uncoated finish, this fastener measures 1-1/2 inches in length under the head and accepts a 1/2-inch hex drive. The fine thread pitch of the 5/8-18 UNF designation provides strong thread engagement and resistance to vibration loosening. Weighing approximately 0.3 pounds, it is suited for use by machinists, millwrights, plumbers, and HVAC technicians who require a corrosion-resistant socket cap fastener in structural or mechanical assemblies.

This screw is commonly used in equipment fabrication, mechanical assemblies, fluid system mounting, and structural connections where stainless steel is specified for wet, coastal, or chemically active environments. Its fine UNF thread makes it a preferred choice in applications requiring precise thread adjustment or where standard coarse threads would not provide adequate holding force. The hex socket drive allows installation in recessed or tight-clearance locations where a standard hex head wrench could not fit.

Key Features

• 5/8-18 UNF fine thread for high holding strength and vibration resistance
• 18-8 stainless steel construction for corrosion resistance in wet and outdoor environments
• 1-1/2 inch length under head for standard fastening depth requirements
• 1/2-inch hex socket drive for use with standard Allen or hex socket tools
• Bright, uncoated finish — no plating to add dimensional variation or cause galvanic concerns with stainless mating surfaces

Compatibility

Designed as an OEM-style replacement or general-purpose fastener for mechanical assemblies, equipment frames, and piping or HVAC component mounting applications requiring a 5/8-18 UNF socket cap screw in stainless steel.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or technician familiar with fastener torque requirements for stainless steel hardware. De-energize or depressurize any system before replacing or installing fasteners in live mechanical or fluid assemblies. Use a calibrated torque wrench and apply an appropriate anti-seize compound to 18-8 stainless threads to prevent galling during tightening. Follow applicable equipment manufacturer guidelines and relevant codes such as ASME or ASTM standards for fastener torque and installation procedures.