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ASTM A193 B7 B7M Black Stud Bolt

Production technology: Cold forging and hot forging, Lathe
Min Order: 500KG each size
Sample: Free sample
Certificate: MTC, Test report
Export country: Asia, Middle East, Europe, America and so on

Quantity:
  • 1/4"-2 1/2"
  • HNF
  • HN201706095

ASTM A193 B7 B7M Black Stud Bolt

A stud bolt/ threaded rod, also known as a stud, is a relatively long rod that is threaded on both ends; the thread may extend along the complete length of the rod. They are designed to be used intension. Threaded rod in bar stock form is often called all-thread. Studs may have a drive slot in one end to facilitate installing the stud.For studs that are not completely threaded, there are two types of studs: full-bodied studs, and undercut studs. Full-bodied studs have a shank equal to the major diameter of the thread. Undercut studs have a shank equal to the pitch diameter of the screw thread. Undercut studs are designed to better distribute axial stresses. In a full-bodied stud the stresses are greater in the threads than in the shank.

ASTM A193 include alloy steel and stainless steel for pressure vessels, flanges, pipes and fittings for high temperature or high pressure service, or other special applications.
Several Grade are included. Such as ferritic steels, and Austenitic stainless steel.
Material according to ASTM A193 B7 is often used in national coarse(UNC) thread pitches, and standard thread pitches
.

 

 

Tech.Standards MaterialGradeSizeFinish
Thread rod DIN/ASTM1008

GB Standard 4.8

Grade ASTM 

Standard Grade2

M2-M120
1/2-5"
ZINC,HDG,Black
Hs3404ASTM193/A193M

GB Standard
40Cr 35CrMo 

25CrMoVA 
0Cr18Ni9,

0Cr17Ni12Mo2 

etc ASTM 

standard
Alloy and 

tainless steel

GB standard
Grade8.8,10.9,

12.9 A2-70,A4-70
ASTM Standard
B5,B7,B7M,B8,

B8M,B16 L7,

L7M,

BC,BD,660A,

660B,651A,651B

GBstandard
M12-M120
ASTM Standard
1/2-5"

Black,zinc plated 

HDG,Cadmium
Plated, Dacromet,

Passivation
Teflon(PTFE,FEP 

PFA ETFE)

HG/T20634ASTM320/A320M
HG/T20613ASTMA354
JB/T4707ASTMA453
        
SH3404ASTMA194/194M

GB Standard
40Cr,35CrMo,

25CrMoVA,

0CR18Ni9,45#,

0Cr17Ni12Mo2
ASTM Standard
Alloy and 

stainless steel

GB Standard
Grade8,10,

A2-70,A4-80 

ASTM Standard

660A 660B 651A,

651B 2H,2HM,4,

6.7,8,16O,A,B,C,

D,DH

GB or DIN

standard
M12-M120
ASTM Standard
1/2-5"

Black,zinc plated 

HDG,Cadmium
Plated, Dacromet,

Passivation
Teflon(PTFE,FEP 

PFA ETFE)

HG/T20613ASTMA563/563M
HG/T20634 
HG/T21573.3 
  
Free Samples for standard fastener
For more information visit:www.hainafastener.com

 


ASTM A193 B7 Material and Chemical Composition:

ASTM A193 B7Alloy steel, AISI 4140/4142 quenched and tempered
ASTM A193 B8Class1 stainless steel, AISI304, carbide solution treated
ASTM A193 B8MClass1 stainless steel, AISI316, carbide solution treated

 

 

Application:

Project to fasten.

DIN975

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