Model NO.: A490
Application: Machinery, Building
Finish: Black
HS Code: 731815, 731815
MOQ: 900kgs
Trademark: HNF
Transport Package: 20-25kg Carton+900kg/Pallet
Specification: M2-M120, 1/2"-1-1/2"
Origin: China
ASTM A490 A325 DIN933 DIN931 4.8 5.8 8.8 10.9 Grade  Black Oxide Heavy Hex Head Bolts

A bolt is a form of threaded fastener with an external male thread. Bolts are thus closely related to, and often confused with, screws. 
A hex cap screw is a cap screw with a hexagonal head, designed to be driven by a wrench (spanner). An ASME B18.2.1 compliant cap screw has somewhat tighter tolerances than a hex bolt for the head height and the shank length. The nature of the tolerance difference allows an ASME B18.2.1 hex cap screw to always fit where a hex bolt is installed but a hex bolt could be slightly too large to be used where a hex cap screw is designed in.

 
Products name Bolts(Hex bolt,Heavy hex bolt,Flange bolt,Carriage bolt,Guardrail Bolt)
Standard: DIN,ASTM/ANSI JIS EN ISO,AS,GB
Material Stainless Steel: SS201, SS303, SS304, SS316,SS316L,SS904L,F593
Steel Grade: DIN: Gr.4.6,4.8,5.6,5.8,8.8,10.9,12.9;  SAE: Gr.2,5,8;  ASTM: 307A,307B,A325,A394,A490,A449,
Finishing Zinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG),Black Oxide,
Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated
Production 
Process
M2-M24:Cold Froging,M24-M100 Hot Forging,
Machining and CNC for Customized fastener
Customized Products
Lead time
Busy season:15-30days,Slack seaon:10-15days
Stock Products Steel:4.8Grade DIN6923,8.8Grade 10.9Grade of GB5783 and GB5782
Stainless steel: All DIN Standard stainless steel Bolt
Free Samples for standard fastener
For more information visit:www.hainafastener.com



ASTM A490 A325 DIN933 DIN931 4.8 5.8 8.8 10.9 Grade Black Oxide Heavy Hex Head Bolts

ASTM A490 A325 DIN933 DIN931 4.8 5.8 8.8 10.9 Grade Black Oxide Heavy Hex Head Bolts

General Pressure Gauge

HONGQI INSTRUMENT (CHANGXING) CO.,LTD , https://www.hongqi-instrument.com