Carbon Steel Gr8.8 Plain Color Full Threaded Rods

The threaded screw in carbon steel with a grade of 8.8 exhibits a color indicative of its material. American standard B7 material, also used, serves as connecting parts for leg assemblies under finger racks. These screws, commonly employed in construction and decoration, typically feature threads set within various parts.

In applications, the screw's length should be appropriate to leave the nut exposed by 1-2 spacings after tightening. Stainless steel options include materials such as 304 and 316, providing durability and corrosion resistance.

Our company boasts extensive experience in fastener production and maintains a dedicated testing department, ensuring products meet stringent quality standards with relevant testing certificates. With meticulous production management, we assure the quality of our offerings. Additionally, we provide customization options for non-standard parts, tailoring products to specific customer requirements. Our commitment is to deliver safe and reliable solutions, fostering long-term partnerships with our valued customers.

Tech.Standards		Material		Grade		Size	Finish
Thread rod	DIN/ASTM	1008		GB Standard 4.8 Grade ASTM Standard Grade2		M2-M120 1/2-5"	ZINC,HDG,Black
Hs3404	ASTM193/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/T20634	ASTM320/A320M
HG/T20613	ASTMA354
JB/T4707	ASTMA453
SH3404	ASTMA194/194M	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/T20613	ASTMA563/563M
HG/T20634
HG/T21573.3

Material

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.

ASTM A193 B7	Alloy steel, AISI 4140/4142 quenched and tempered
ASTM A193 B8	Class1 stainless steel, AISI304, carbide solution treated
ASTM A193 B8M	Class1 stainless steel, AISI316, carbide solution treated