Value Collection 701019PR Button Socket Cap Screw 3-48

Product Description

The VALUE COLLECTION 701019PR is a button socket cap screw designed for applications requiring a low-profile fastener with high shear strength. Built from alloy steel with a black oxide finish, this fully threaded screw measures 3-48 thread size by 5/8 inch length under head. It is driven with a 1/16 inch hex socket and conforms to ANSI/ASME B18.3 and ASTM F835 standards. The black oxide coating provides mild corrosion resistance and reduces light reflection in finished assemblies. Licensed machinists, toolmakers, and maintenance technicians typically install this fastener in precision mechanical assemblies, fixtures, and enclosures.

This screw is suited for light-duty mechanical assemblies where a flush or near-flush head profile is required and clearance is limited. The 3-48 UNC thread size targets small-instrument, electronics housing, and precision fixture work where fine thread engagement is critical. Right-hand thread direction and a 3A thread fit class ensure consistent engagement with standard tapped holes. This fastener is sold individually but requires a minimum order quantity of 100 pieces per order.

Key Features

• Button head profile provides low clearance height of 0.0520 inches for flush-mount applications
• Alloy steel construction with 36-43 HRC hardness rating for strong clamping force in small fastener applications
• Black oxide finish offers mild corrosion resistance and a non-reflective appearance
• Fully threaded 3-48 UNC right-hand thread with 3A fit class for consistent engagement
• Conforms to ANSI/ASME B18.3 and ASTM F835 fastener standards
• 1/16 inch hex socket drive compatible with standard hex keys and socket drivers

Compatibility

Designed as a standard-specification replacement or stock fastener for any tapped 3-48 UNC threaded hole requiring an ANSI/ASME B18.3 button socket cap screw with a 5/8 inch length under head.

Installation Notes

Install using a 1/16 inch hex key or socket driver; ensure the mating hole is tapped to 3-48 UNC before installation. De-energize or power down any equipment before accessing fastened assemblies in electrical or mechanical enclosures. Do not exceed the designed thread engagement depth of the mating material to avoid stripping the 3A thread fit. Follow applicable mechanical assembly standards for torque requirements based on material and application.