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Ningbo Zhenhai HuaLong Fasteners Co.,Ltd

Tel: 86- 574-86534199

Fax: 86-574-86533458

Mob: +86 13566521999

Email: hl@hualong-fastener.com

Add: ChangHong Village, Zhenhaizone, Ningbo City, China

A193 GRB7 Bolts with A194 2H Nuts Set Zinc

A193 GRADE B7 STUDS AND THREADED RODS ITEM: STANDARD SPECIFICATION FOR ALLOY STEEL BOLTING FOR HIGH TEMPERATURE OR HIGH PRESSURE SERVICE MATERIAL: ALLOY STEEL A193 B7 (ANSI 4140) DIMENSION: IFI-136 THREADED STUDS FINISHING: BLACK HOT DIP GALVANIZED

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Product Details

A193 GRADE B7 STUDS AND THREADED RODS
 ITEM:  STANDARD SPECIFICATION FOR ALLOY STEEL BOLTING FOR HIGH  TEMPERATURE OR HIGH PRESSURE SERVICE
 MATERIAL:  ALLOY STEEL  A193 B7 (ANSI 4140)
 DIMENSION:  IFI-136 THREADED STUDS
 FINISHING:  BLACK
 HOT DIP GALVANIZED

Main products

Hex head bolt

DIN931,DIN933,DIN960,DIN961,ISO4014,ISO4017

Heavy hex bolt

DIN6914,DIN7990,ASTM A325,ASTM A490

Hex nut

DIN934,DIN6915,ASTM A194 2H,ASTM A563

Washer

DIN125,DIN127,DIN6916,ASTM F436

Stud bolt

DIN975,ASTM A193 B7

Standard

DIN, ISO, ANSI, ASME, BS, AS, JIS and    non-standards  

Application

Building, instrument, automobile, furniture and    so on

Grade & Material

Grade 4.8

Q235

Grade 5.8

35K   (  no heat    treatment  )

Grade 8.8

D  ≤  M20

35K

M22  ≤  D  ≤  M24

45#

D  ≥  M27

40Cr

Grade 10.9

D  ≤  M24

40Cr

D  ≥  M27

35CoMoA

Grade 12.9

D  ≤  M24

35CoMoA

D  ≥  M27

42CoMoA

Diameter

M6-M100mm Or 1/4"-1-1/2"

Length

20-1000mm Or 3/4"-12"

Production Process

Cold Heading

Cold heading  →  Heat treatment  →  Surface treatment

Hot Forging

Cutting  →  Chamfering(tail)  →  Hot forging  →  Chamfering(head)  →  Polishing  →  Backspin  →  Threading rolling  →  Heat treatment  →  Surface    treatment

Finish

Plain, Black oxidized, Zinc Plated (white,    yellow, blue, color...),  
      Hot Dip    Galvanized, Dacromet, Chrome

Packing

25kg per carton, 36 cartons packed in a pallet  
      or according to    your demands

Supply Ability

800 tons per month

Minimum Order

500kgs for each specification

Delivery

15-45 days

Certification

ISO9001-2008 and Ningbo Product Quality    Inspection (see below)

Our motto

High quality; Attractive price; Timely    delivery; Service upmost

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