Machine Screw

Machine Screw Parameter

Machine Screw
Standard:	ASME/ANSI B18.6 ,DIN967, JIS B 1111, JIS B 1194, DIN964,DIN965,D7991,ISO7380,ISO7046
Size:	#5 - 3/4"; M3 – M20
Material:	Carbon Steel, Alloy Steel, Stainless Steel,
Length:	10-180mm (3/8”- 7”)
Head type:	Pan, Hex , Flat, Truss, Round, Hex washer, Oval, Pan framing​
Drive type:	Phil, Slotted, Phil & Slotted Combination, Hex socket, Pozi
Finish:	Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G
Application:	Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating
Supply Ability:	5000 tons per month
MinimumOrder:	500kgs for each specification
Trade Term:	FOB/CIF/CFR/CNF/EXW/DDU/DDP
Notice:	Please lets know the Size, quantity, Material or Grade, surface, If it is special and Non-standard products, please supply the Drawing or Photos or Samples to us

Machine Screw Description

Machine screw is generally a screw with a diameter less than ¼ inches (4#~12#), usually full thread and rotated by a screwdriver, such as a slotted slot, cross or hexagon socket.

Types
The most common types of machine screw head shapes are pan head, flat head, round head, oval head, truss head and hex head. While round heads are probably used most often, flat heads are particularly useful when the screw needs to be flush with the surface it's screwed into.

Purpose
Machine screws are one type of screw; they're used to hold parts together in all types of machines such as electronics, engines and huge industrial manufacturing equipment. ... Machine screws come in coarse thread, which means they have 24 threads per inch, and in fine thread, which means they have 32 threads per inch.

What is the difference between a bolt and a machine screw?
Bolts are typically used with nuts and washers with a clearance hole to join two pieces together. Machine screws are typically used with a threaded hole to secure two parts together. Many nuts will fit machine screws.

How are machine screws made?
Today, most screws are manufactured by thread rolling. ... The most common materials screws are made of today are composed of low-medium carbon steel wire. Other materials used include brass, stainless steel, nickel alloy or aluminum. Steel can be plated with zinc, nickel, chromium or other plating materials.