Sems Machine Screws Manufacturer in China

Zhenkun offer Sems Machine Screws in different sizes & standards.Sems Machine Screws are also available in different materials and grades.Sems Machine Screws used for construction materials for projects such as docks, bridges, highway systems, mechanical equipment,and homes, among other things.

SEMS Machine Screws

SEMS® Machine Screws are machine screws with pre-assembled captive washers, designed to speed total assembly time in a manufacturing process.

SEMS® Machine Screws come pre-assembled with a free rotating lock washer that is firmly kept in place by the screw's thread's main diameter. This removes the need to manually attach washers to the screw, saving you time, money, and the risk of washers being lost or dropped in the production line. SEMS screws combine two different parts into a single, low-cost fastener that is pre-assembled. They combine two separate parts into a single, low-cost pre-assembled fastener. SEMS® Machine Screws are similar to regular machine screws in that they require a pre-drilled hole.
Common applications of SEMS Machine Screws are:

• • Electronics
• • Medical
• • Automotive

SEMS Machine Screws Diameters

SEMS Machine Screws are available from Zhenkun factory with Imperial/US diameters that range from #1 to 2 and with Metric diameters that range from M1.6 to M14. The length of SEMS Machine Screws is usually measured from the point to the underside of the head.

US/Imperial diameters

• •#1     •#2     •#3     •#4     •#5     •#6     •#8     

• •#10     •#12     •#14     •1/8     •3/16     •1/4     •5/16     

• •3/8     •1/2     •5/8     •1     •2     

Metric diameters

• •M1.6     •M2     •M2.5     •M2.6     •M3     •M3.5     

• •M4     •M4.2     •M4.8     •M5     •M5.5     •M6     

• •M6.3     •M8     •M10     •M12     •M14     

SEMS Machine Screws Lengths

SEMS Machine Screws are available from Zhenkun factory with lengths that range from 1/8 to 19.

US/Imperial lengths

• •1/8     •5/32     •3/16     •7/32     •1/4     •9/32     •5/16     •11/32     •3/8     •13/32     •7/16     •1/2     •9/16     •5/8     •11/16     •3/4     •13/16     •7/8     •15/16     

• •1     •1 1/16     •1 1/8     •1 3/16     •1 1/4     •1 5/16     •1 3/8     •1 7/16     •1 1/2     •1 9/16     •1 5/8     •1 11/16     •1 3/4     •1 7/8     •2     •2 1/8     •2 1/4     •2 3/8     •2 1/2     

• •2 5/8     •2 3/4     •3     •3 1/8     •3 1/4     •3 1/2     •4     •4 1/4     •4 1/2     •5     •6     •10     •12     •13     •14     •16     •18     •19     

Metric lengths

• •2     •3     •4     •5     •6     •7     •8     •9     •10     •12     •14     •15     •16     

• •18     •19     •20     •21     •22     •25     •26     •27     •28     •30     •32     •33     •34     

• •35     •36     •38     •40     •45     •50     •55     •60     •70     •80     •90     •155     

SEMS Machine Screws Materials

SEMS Machine Screws are available from Zhenkun factory in materials that range from Steel to Fiber

• •Steel     •Grade 2     •Grade 5     •Grade 8     •Class 4.8     •Class 5.8     •Class 6.8     •Class 8.8     •Class 9.8     •Class 10.9     •300 Stainless (A1,A2, 18-8,304,310 etc.)     

• •316, 317, A4 Stainless     •400 Stainless (405, 410,416,420,430 etc.)     •Ni-Cu Alloy (Monel, K-Monel, etc.)     •Copper     •Aluminum     •Brass     •Silicon Bronze     •Nylon     •Rubber, Buna-N etc.     •Fiber     

SEMS Machine Screws Finishes

SEMS Machine Screws are available from Zhenkun factory in finishes or coatings that range from Plain to Tin

• •Plain     •Zinc/Clear     •Zinc/Yellow     •Zinc/Green     •Zinc/Black     •Aluminum zinc flake (Dacromet, Magnigard, Doerken)     •Black Oxide     •Brass Plated     •Cadmium     •Cadmium/Yellow     

• •Chromate Conversion (Iridite, Alodine)     •Chrome     •Copper     •Nickel     •Painted     •Passivated     •Phosphate     •Silver     •Tin