Product Description

Gangtong Zheli is China manufacturer & supplier who mainly produces Customized Carbon Steel ASTM Gr5 Black Hex Bolt with Knurls with many years of experience. Hope to build business relationship with you. Hex bolts are categorized into metric hex bolts and ASME hex bolts. Bolts are a type of threaded fastener with an external male thread, often closely associated with and sometimes confused with screws. A hex cap screw is essentially a cap screw featuring a hexagonal head, designed to be turned with a wrench or spanner. ASME B18.2.1 compliant cap screws have slightly stricter tolerances compared to hex bolts, particularly in terms of head height and shank length. This difference in tolerance ensures that an ASME B18.2.1 hex cap screw can always fit in situations where a hex bolt is intended, but a hex bolt might be marginally larger and unsuitable for applications specifically designed for hex cap screws.

Customized Carbon Steel ASTM Gr5 Black Hex Bolt with Knurls

Product Name	Customized Carbon Steel ASTM Gr5 Black Hex Bolt with Knurls
Standard:	DIN,ASTM/ANSI JIS EN ISO,AS,GB
Material	Stainless Steel: SS201, SS303, SS304, SS316,SS316L,SS904L
	Stainless Steel 304 316 316L GrB8 B8M. Carbon Steel
Finishing	Zinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG) phosphorization, Black Oxide,Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated
Customized Products Lead time	Busy season:15-25days,Slack seaon:10-15days
Stock Products	Stainless steel: All DIN ,GB Standard and part ASNI standard stainless steel screws, Example: ISO7380,DIN7981,DIN7982,DIN916,DIN913,DIN7985,DIN912
Get Free Samples for standard fastener from Gangtong Zheli Fastener

1:Metric Hex BOLT:GB/T 3098.1-2010，ISO898.1-2009
CLASS	4.6;4.8	5.8	6.8	8.8		9.8		10.9	12.9
SIZE	ALL SIZE			≦M12	>M12	≦M8	>M8	ALL SIZE
COMMON MATERIALS	1008 ~ 1015	1012 ~1017	10B21 / 1022	10B21	10B33	10B21	10B33	10B33 / SCM435/ML20MnTiB	SCM435
COMMON MATERIALS	ML08AL SWRCH8A~ SWRCH15A	SWRCH15A~ SWRCH18A	SWRCH22A	35K		35ACR	10B35		AISI 4140
HEAT TREATMENT(YES/NO)	NO			YES

2:ASME Hex BOLT:SAE J429
CLASS	G1	G2	G5		G5.2	G8	SK
SIZE	ALL SIZE		≦3/8	>3/8	ALL SIZE
COMMON MATERIALS	1008 ~ 1015 ML08AL SWRCH8A~ SWRCH15A	1017	C(0.28~0.55) 10B33 or MEDIUM CARBON STEEL		C(0.15~0.25) or 10B21	10B33 or SCM435	SCM435
COMMON MATERIALS	1008 ~ 1015 ML08AL SWRCH8A~ SWRCH15A
HEAT TREATMENT(YES/NO)	NO		YES