Tel：
+86 13143444311
Email：sst@szsst88.com
Fax：+0086-755-27322278
Address：Building 9, First Industrial Zone, Tantou Industrial City, Songgang Street, Baoan District, Shenzhen 518105, Guangdong, China
Type:Wafer Head Machine Screw
Materials:Carbon Steel
Surface treatment:Nickel Plated
Head Type:Truss Head
Size:M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M14
Number:721
A low head can clear a cover yet still leave the fastening stack poorly matched. Shi Shi Tong reviews head contact and thread position together for this wafer head machine screw. The configuration uses nickel-plated carbon steel, a Phillips drive and a partially threaded right-hand machine thread.
Head diameter, underside shape and the mounting opening determine where the screw presses on the component. Reducing height alone does not ensure that the surrounding panel or bracket is supported as intended.
How we help: We compare the proposed head section with the opening and nearby features. We assess feasible dimensions for clearance and seating, then discuss sample checks so the head can be evaluated against the actual contact arrangement.
A partially threaded screw may work at one stack thickness but place its smooth shank or thread transition incorrectly at another. The result can be incomplete engagement or resistance before the joint is seated.
How we help: We review the thickness range, smooth-shank length and receiving thread together. We identify the critical thread-start position and assess a suitable length arrangement. Sample checks at relevant stack limits help determine whether the proposed specification covers your assemblies.
A shallow external profile leaves a defined amount of space for the recess. Tool size, recess depth and approach clearance need to be reviewed together instead of copied from a taller screw.
How we help: We assess the drive detail with the head geometry and intended bit. Your sample-installation feedback helps clarify engagement and visible-mark requirements before the production design is finalized.
Material / finish: Carbon steel / nickel plating.
Head / drive: Wafer-style low head / Phillips, defined by the approved section.
Thread: Partially threaded right-hand machine thread.
The head height, bearing diameter, grip length and thread tolerance are specified for the application. Half thread does not establish a fixed ratio, and the nickel finish does not determine the steel strength class.
Share the mounting section and the range of component thicknesses. We review geometry, material and manufacturing feasibility, then clarify tooling and sample needs. Evaluate seating, drive access and engagement with representative parts before agreeing the production drawing and inspection plan.
Thin heads and partial threads create related manufacturing requirements. We assess the head section, recess and shank transition as one design, matching the material and process route to the drawing. Tooling and prototype validation support an approved specification for repeat production.
For this wafer-head design, we discuss checks for head height, bearing diameter, recess and the start of complete threading. Finished-thread and surface requirements are also agreed for the nickel-plated part, so inspection addresses both clearance and usable engagement.
Issued 26 February 2026
Certified scope: design and production of screws. We review material and product-specific documentation against your order requirements.
Bring the range of assembled thicknesses and the reason for choosing a wafer head into the discussion. Customer meetings and sample reviews help our team understand whether clearance, contact area or grip variation is driving the project.
These figures describe company-wide customer cooperation.
Can one screw cover several stack thicknesses?
We can assess the range against the thread position and receiving depth, then define the relevant sample checks.
Does a low head require a countersink?
The seat depends on the specified profile. We review the underside and mounting surface rather than assuming a countersunk arrangement.
Can you review our current screw sample?
Yes. Include the mating components or their dimensions so the assessment covers the working joint.
Send the available height, mounting opening, minimum and maximum stack, receiving thread and quantity. Explain the clearance or engagement issue so we can focus the design review and sample plan on your assembly.
+86 13143444311
sst@szsst88.com
