M4-0.7 x 55 18-8 Stainless Steel Metric Flat Head Socket Cap Screw provides an 18-8 stainless metric flat head option for applications where a proud screw head would catch or interfere. The internal hex drive keeps installation access from the top face, which is useful where side wrench clearance is limited.
Architectural stainless trim and equipment bezels use this style where the visible fastener head should sit level with the face. Some metric drawings call this 18-8 family A2 stainless; that is material wording, not a mechanical rating. Confirm overall length, head diameter, head height, socket size, and key engagement before substitution.
For machine repairs, Cold Headers can help match the thread, length, material, and countersunk geometry rather than substituting by appearance. Cut-to-length service can be reviewed for non-standard metric lengths. Alloy Steel Metric Flat Head Socket Cap Screws serve alloy-material metric prints.
Technical Highlights
- Head Style: Flat (countersunk), internal hex drive
- Countersink Angle: 90°
- Material: 18-8 Stainless Steel
- Thread Size: M4-0.7 (coarse metric pitch)
- Length: 55 mm (overall, including head)
- Head Diameter: 8.00 / 7.78 mm (max/min)
- Head Height: 2.48 mm (max)
- Hex Key Size: 2.5 mm
- Minimum Key Engagement: 1.49 mm
- Dimensional Standard: ISO 10642
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
