Value Collection FHS1XX0425-050BX M4x0.7 Flat Socket Cap Screw

Product Description

The VALUE COLLECTION FHS1XX0425-050BX is a metric flat socket cap screw engineered for applications where a flush or countersunk fastener profile is required. Sized at M4x0.7 with an overall length of 25 mm and a 2.5 mm hex socket drive, this screw features a 90-degree flat head that sits flush with or below the mating surface when properly installed. Constructed from 316 austenitic stainless steel to Grade A4, it offers strong resistance to corrosion, making it suitable for wet, marine, or chemically exposed environments. The shank is partially threaded per DIN 7991 standards. Each box contains 50 pieces.

This fastener is well-suited for precision assemblies, panel mounting, machine housings, food-processing equipment, marine hardware, and other applications where head protrusion is unacceptable and corrosion resistance is a priority. The metric M4x0.7 thread size is common in light-duty mechanical assemblies and electronic enclosures. The DIN 7991 standard ensures dimensional consistency for interchangeability across metric hardware applications. Licensed trades, mechanical assemblers, and maintenance technicians regularly spec this fastener type in both residential and commercial settings.

Key Features

• 90-degree flat head profile allows flush or countersunk installation
• 2.5 mm hex socket drive for precise torque application with standard Allen keys
• 316 austenitic stainless steel, Grade A4 — excellent corrosion and chemical resistance
• Partial threading per DIN 7991 for accurate metric dimensional compliance
• M4x0.7 metric thread, 25 mm overall length
• Sold in boxes of 50 for job-lot convenience

Compatibility

Designed as a DIN 7991-compliant metric flat socket cap screw for use in any M4x0.7 threaded application requiring a countersunk hex-drive fastener in 316 stainless steel.

Installation Notes

Install with a 2.5 mm hex key or Allen driver; use a torque wrench where joint specifications require controlled clamping force. Ensure the mating material is properly countersunk to the 90-degree included angle before driving the screw flush. Avoid cross-threading by starting the fastener by hand and confirming thread engagement before applying torque. When working in chloride or marine environments, inspect threads and seating surfaces for contamination before installation.