Hammer Head Toothed T-bolt
  • Air ProHammer Head Toothed T-bolt
  • Air ProHammer Head Toothed T-bolt

Hammer Head Toothed T-bolt

The hammer head toothed T-bolt and the toothed pre-buried slot are occluded to ensure that the load transmission in the longitudinal direction of the channel is realized through the locking force of the teeth, and the risk of slippage is minimized.

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Product Description

Hammer Head Toothed T-bolt


1. Features and advantages

1. The toothed T-bolt head and the toothed pre-buried slot are occluded to ensure that the load transmission in the longitudinal direction of the channel is realized through the locking force of the teeth, and the risk of slippage is minimized

2. The diamond-shaped design of the bolt head can effectively prevent the bolt from being over-threaded

3. There is a notch mark on the end of the screw to facilitate correct installation and positioning

4. Multi-station cold heading process, tooth tip and full, stable performance, beautiful appearance

5.8.8 level mechanical properties, superior tensile, shear, fatigue, and fire resistance

6. The surface is treated with coating, and the thickness of the coating is ≥55um to ensure the smooth screwing of the nut and bolt


2. Design Bearing Capacity of T Bolts with Different Thread Diameter, Material and Strength Grade.

The Nrd is the tensile load value, the Vrd is the shear load value, Mrd is the bending resistance when the cantilever is subjected to transverse load, that is, the design value of bending moment.


Bolt Type

Carbon steel 8.8 grade

Stainless steel (SUS316L) A4-80

Nrd tensile

Vrd of shear

Mrd of moment/single bolt

Tinst of torque

Nrd tensile

Vrd of shear

Mrd of moment/single bolt

Tinst of torque

30/20 M12

44.9 KN

27.2 KN

61.2 N·m

84N·m

31.6 KN

KN 22.7

58.8 N·m

70N·m

38/23 M12

44.9 KN

27.2 KN

61.2 N·m

84N·m

31.6 KN

KN 22.7

58.8 N·m

70N·m

38/23 M16

83.7 KN

50.5 KN

155.4 N·m

200N·m

58.8 KN

33KN

116.6 N·m

193N·m

53/34 M16

83.7 KN

50.5 KN

155.4 N·m

200N·m

58.8 KN

33KN

116.6 N·m

193N·m

53/34 M20

130.7 KN

79KN

303N·m

350N·m

91.7 KN

51.5 KN

227.2 N·m

300N·m

64/44 M20

130.7 KN

79KN

303N·m

350N·m

91.7 KN

51.5 KN

227.2 N·m

300N·m

64/44 M24

188.3 KN

113.7 KN

524N·m

450N·m

132.1 KN

54.5 KnN

N·m 238.7

400N·m


3.Analysis of the advantages of hammer head T-bolts with teeth.


T non-Wofu bolts

T Wolf Bolts

Production process

High frequency heating, red beating process, T embrittlement of bolt head

Multi-station cold heading process, teeth obviously sharp and full, superior tensile, shear resistance

Dimension control

tooth depth less than 1.5 mm, tooth width unstable

Real tooth depth 1.57-1.60 mm, tooth width 3.0 mm, and groove tooth locking

Material selection

It is difficult to guarantee the stability of steel

All steel products specified in the same large steel plant, pure alloy steel, quality assurance

Mold selection

Domestic mold, low precision mold, poor service life

Imported mould, high precision, clear angle of T bolt produced, long service life of mould

Mold control

It is possible that the mould will be broken and scrapped

Production of 20,000, that is, the replacement of tooth mold, to ensure the consistency of tooth depth

Production efficiency

The multi-machine assembly line produces about 4,000 units a day

Multi-station cold heading, a machine a day production of 20,000, is 5 times the production of red beat

Inspection Control

One person in charge of multiple machines, negligence of quality problems

Special plane, regular inspection mold, from the root to solve the problem of bad products

Quality tracking

The process of production and inspection can not be traced back

Complete production process, steel, production, testing data, always traceable




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