HEX SOCKET SET SCREWS (DIN916 / ISO 4029)

HEX SOCKET SET SCREWS (DIN916 / ISO 4029)
Set screw is also called headless machine screw, and the length can be adjusted according to customer requirements.

Common m
aterial: alloy steel, stainless steel SUS304, SUS316.

Common points include the following:
Flat point
Domed point
Cone point
Cup point
Extended point (pilot point, dog point)
Knurled cup point.

Set screws are made with a variety of drive styles, including the following:
Straight slot
Hex socket
Square socket
External hex
External square
Bristol spline

INTERNATIONAL STANDARDS

  • DIN 916 (CUP POINT)
  • ISO 4029 (CUP POINT)
  • DIN 913 (FLAT POINT)
  • ISO4026 (FLAT POINT)
  • DIN 914 (CONE POINT)
  • ISO4027 (CONE POINT)
  • DIN 915 (DOG POINT)
  • ISO 4028 (DOG POINT)
  • PN 82317
  • UNI 5929
  • EU 24029
  • DIN551
  • DIN438
  • DIN553

APPLICATIONS

A set screw or grub screw is a type of screw generally used to secure an object within or against another object, normally without using a nut.

The most common examples are securing a pulley or gear to a shaft.

Set screws are usually headless (also called blind), meaning that the screw is fully threaded and has no head projecting past the major diameter of the screw thread. If a set screw has a head, the thread will extend all the way to the head (whereas a bolt might have an unthreaded shank between the head and thread). A grub set screw (known in the US as a “blind” screw) is almost always driven with an internal-wrenching drive, such as a hex socket (Allen), star (Torx), square socket (Robertson), or slot.

The set screw passes through a threaded hole in the outer object and is tightened against the inner object to prevent it from moving relative to the outer object. It exerts compressional or clamping force through the bottom tip that projects through the hole.

An example application is when a set screw is screwed into a pulley hub so that its end-point bears firmly against the shaft. The fastening action is by friction between the screw and the shaft, often with some amount of elastic or plastic deformation of one or both.

MATERIAL

Material Available:

  • STAINLESS STEEL: SUS304, SUS316, SUS410
  • GRADE 8.8: C1018 - C1022, 10B21
  • MILD STEEL / MID CARBON STEEL: C1035 - C1045
  • ALLOY STEEL: SCM435 - SCM440 (Grade 10.9, Grade 12.9)
  •  │8│GRADE 1008K 1010 
  • 7 8 GRADE 1015(M<16) CH38F (M≥16)
  • 8 10 GRADE CH38F 1039 10B21 10B33
  • 9 12 GRADE 1039 10B21 10B33 10B38 
  • Material according to customer’s specifications

SIZE RANGE

STANDARD SIZE RANGE:
  • D = M3 ~ M20
  • L = 3MM ~ 100MM

SURFACE TREATMENT

SURFACE TREATMENT TYPES:

  • PLAIN; NON-PLATED
  • HEAT TREATMENT
  • ZINC PLATED – WHITE ZINC / YELLOW ZINC / BLACK ZINC
  • Zinc trivalent coatings Cr3+ (Meet RoHS standards)
  • Zinc hexavalent zinc plating Cr6+
  • Nickel plating
  • Black Oxide
  • Black / Grey Phosphate
  • Hot Dip Galvanised
  • GEOMET® 500
  • DACROMET®
  • Passivation
  • All electro-plating, electro-coating and surface treatment specifications can meet customer's requirements.