Holo-krome 560002650 Socket Head Cap Screw Assortment

Product Description

The HOLO-KROME 560002650 is a 724-piece socket head cap screw assortment covering thread sizes from 4-40 up to 5/16-18. The screws are manufactured from alloy steel to Class 12.9 strength, making them suitable for high-load fastening applications where standard-grade hardware falls short. Maximum screw length in the assortment reaches 2 inches. The kit is packaged as a single unit and is used by maintenance technicians, millwrights, and mechanical contractors who need a broad range of inch-series socket head fasteners on hand for equipment repair, machine assembly, and general mechanical work.

This assortment covers a practical range of unified inch-series socket head cap screws commonly needed in light to medium mechanical assembly and repair environments. The Class 12.9 alloy steel construction suits applications where fastener tensile strength is a priority. The range from 4-40 through 5/16-18 addresses the most frequently encountered small-to-mid-range inch thread sizes found in HVAC equipment panels, pump housings, motor mounts, and general fabrication work.

Key Features

• 724-piece assortment provides broad thread-size coverage in a single kit
• Thread range spans 4-40 minimum to 5/16-18 maximum
• Class 12.9 alloy steel construction for high tensile strength fastening
• Maximum included screw length of 2 inches
• Socket head cap screw drive style for hex key installation in tight clearances
• Single-package format keeps assortment organized and ready for field or shop use

Compatibility

Designed as an OEM-style and general-use replacement and supply assortment for applications requiring unified inch-series socket head cap screws in the 4-40 through 5/16-18 thread range.

Installation Notes

Socket head cap screws are installed using the appropriate inch-series hex key or Allen driver; verify driver size matches the socket before applying torque to avoid rounding. De-energize and lock out any equipment before removing or replacing fasteners on live assemblies. Inspect mating threads for damage or contamination prior to installation. Follow applicable mechanical codes and equipment manufacturer torque guidelines for the specific application.