Machine Screws Precision Cold‑Formed Fasteners For Threaded‑Joint Assembly

Short Description:

Manufactured by mature cold heading and thread‑rolling process, our machine screws deliver stable thread fit for pre‑tapped holes or nut‑matched connections. We produce standard stock and custom‑modified machine screws to satisfy different load, environment and automation‑assembly requirements.

Product Detail

Product Tags

Technical Parameter Table

Parameter	Available Options
Product	machine screws
Manufacturing Process	Cold heading + thread rolling
Head Styles	Pan head, countersunk flat head, socket cap, hex head, truss head
Drive Types	Phillips, hex socket, torx, pozi, slotted
Material & Strength	Carbon‑steel(4.8 /8.8 /10.9 grade), 304 SS(A2‑70), 316 SS(A4‑80), brass
Surface Treatment	Zinc‑plated, black oxide, nickel‑plated, passivated stainless finish
Thread Standard	Metric DIN‑ISO, UNC / UNF imperial
Size	Metric M1.0‑M12; partial inch sizes, custom by drawing / sample
Core Requirement	Must pair with pre‑tapped hole or mating nut

Manufacturing & Performance Features Of Our machine screws

1. Cold heading & thread‑rolling craft

All machine screws adopt cold‑forging forming and rolling threads instead of cut threads. Rolling improves thread surface density, boosts shear resistance and avoids burrs, which works well for high‑speed automatic feeding screwing machines.

2. Strict thread‑tolerance control

Threads are controlled under standard tolerance range. This reduces cross‑thread risk during mass assembly. Mixed‑batch interchangeability is guaranteed for long‑term repeat orders.

3. Flexible grade‑to‑environment matching

Different material grades respond differently to load and ambient conditions. Below quick‑reference table helps buyers pick suitable machine screws:

表格

Material Grade	Typical Working Condition
4.8‑8.8 carbon‑steel machine screws	Indoor dry, general‑load electronic & cabinet assembly
10.9 high‑strength carbon‑steel machine screws	Medium‑high load mechanical frames, vibration‑prone assemblies
304 stainless‑steel machine screws	Humid indoor, general coastal non‑salt‑spray environment
316 stainless‑steel machine screws	Heavy salt‑spray, outdoor, marine‑adjacent equipment
Brass machine screws	Low‑current conductive terminal connection

4. Automation‑friendly dimensional consistency

Each lot runs sampling inspection for head dimension, thread pitch and surface quality. Consistent geometry prevents jamming inside auto‑screwdriver feeding rails, lowering line‑stop frequency on mass‑production workshops.