Value Collection HC3XX18120 M18 Hex Cap Screw 316 Ss

Product Description

The VALUE COLLECTION HC3XX18120 is a fully threaded hex head cap screw engineered to metric dimensional standards and manufactured from Grade 316 austenitic stainless steel classified as Austenitic Grade A4. The M18 x 2.50 thread form runs the full length under the head, measuring 120 mm, making it suitable for through-bolted connections where partial threading is not acceptable. The 27 mm hex drive accommodates standard metric wrenching. Corrosion resistance from the 316 alloy makes this fastener appropriate for wet, chemical-exposure, or marine-adjacent environments. Licensed tradespeople and maintenance professionals working in process, mechanical, or facilities applications install this type of fastener daily.

This cap screw is used in structural, mechanical, and equipment-assembly applications requiring metric fasteners with reliable corrosion resistance. Typical scenarios include pipe flange connections, equipment mounting, and fabrication work where stainless hardware is specified. The fully threaded configuration provides maximum engagement options for varied material thicknesses. It conforms to DIN 933, EN 24017, and ISO 4017 standards, making it interchangeable with equivalently specified metric hex cap screws procured to those international standards.

Key Features

• M18 x 2.50 mm thread form, fully threaded along the 120 mm length under head
• Grade 316 Austenitic Grade A4 stainless steel for elevated corrosion resistance
• Bright uncoated finish — no coating thickness to account for in thread fit
• 27 mm hex drive size compatible with standard metric open-end, box, and socket wrenches
• Conforms to DIN 933, EN 24017, and ISO 4017 dimensional and material standards

Compatibility

Designed as a direct-fit metric hex cap screw for any application specifying M18 x 2.50 fully threaded fasteners per DIN 933, EN 24017, or ISO 4017. Verify thread class and material grade requirements against project specifications before installation.

Installation Notes

Installation is performed by mechanics, millwrights, pipefitters, or maintenance technicians using a 27 mm open-end or box wrench and appropriate metric socket tooling. Torque to the value specified in the relevant equipment documentation or engineering specification — do not apply a generic torque value without confirming the joint design. Ensure mating threads are clean and free of debris before assembly. When used in flange or pressure-boundary applications, follow applicable codes such as ASME PCC-1 or the governing mechanical code for the installation.