countersunk hex screws DIN7991-1986 Alloy Steel 12.9 10.9 HRC39-44 HRC32-39

Home » Products » Screws » countersunk hex screws DIN7991-1986 Alloy Steel 12.9 10.9 HRC39-44 HRC32-39

countersunk hex screws DIN7991-1986 Alloy Steel 12.9 10.9 HRC39-44 HRC32-39

Pengchi Hardware(Shandong)Co.,Ltd.
Pengchi Hardware(Shandong)Co.,Ltd.is a fastener manufacturer integrating development,design,manufacturing,and trade.The company specializes in stainless steel fasteners and hardware accessories.We own cold headingmachines,hot heading machnes,CNC lathes,CNC machining centers,and punching machines.We have an inventoy ofover 3,000 tons and offer over 4,000 products.With over a decade of experience,we have a team of over 30 people,including over 10 professional technicians.We utilize domestically produced high-tech equipment and regularly update it.Our extensive production experience and advanced technology make us a trusted source of expertise.
We specialize in the production of:8.8,10.9,and 12.9 grade high-strength bolts;201,304,and 316 stainless steelscrewscustom-made non-standard screws;custom-made standard parts made of special hgh-temperaure alloys;andthe production and processing of precision locknuts,expansion sleevessprockets,and chains.Our products ae used inrail transit,building curtain walls,new energy,communications equipment,petrochemical components,valve flanges,andmarine vessels.Our years of experience in supply chain management provide customers with one-stop procurementservices,accumulating valuable industry experience.Our mission is "Quality Products,Timely Delivery.Reasonable Prices,and Sincere Service."We look forward to long-term cooperation,mutual development,and shared success.

Quantity:
Availability:





Inquire

Product Description

規範 According To	DIN7991-1986
材質 Material	Alloy Steel
强度區分Strength Grade	12.9	10.9
硬度Hardness	HRC39-44	HRC32-39
螺纹等级Class of thread	5g6g	6g
表面處理Surface Treatment	Black Oxide

Thread Size (d)	Thread Pitch	D		A		H	C	S		e	T		r	Z
		Nominal Size		Nominal Size		Nominal Size	Reference	Nominal Size		Approx	Nominal Size		Min.	Approx


		Max.	Min.	Max.	Min.	Max.		Max.	Min.		Max.	Min.
M3	0.50	3	2.86	6	5.70	1.9	0.2	2.0	+0.10 +0.02	2.30	1.2	0.95	0.1	0.6

M4	0.70	4	3.82	8	7.64	2.5	0.3	2.5	+0.10 +0.02	2.87	1.8	1.55	0.2	0.8
M5	0.80	5	4.82	10	9.64	3.0	0.3	3.0	+0.10 +0.02	3.44	2.3	2.05	0.2	0.9
M6	1.00	6	5.82	12	11.57	3.6	0.3	4.0	+0.10 +0.02	4.58	2.5	2.25	0.3	1.0
M8	1.25	8	7.78	16	15.57	4.7	0.4	5.0	+0.14 +0.02	5.72	3.5	3.20	0.5	1.5

M10	1.50	10	9.78	20	19.48	5.8	0.5	6.0	+0.14 +0.02	6.86	4.4	4.10	0.5	1.5

M12	1.75	12	11.73	24	23.48	7.0	0.5	8.0	+0.175 +0.025	9.15	4.6	4.30	1.0	2.0
M16	2.00	16	15.73	30	29.48	8.0	0.5	10.0	+0.175 +0.025	11.43	5.3	5.00	1.0	2.0


M20	2.50	20	19.67	36	35.38	9.0	0.5	12.0	+0.032 +0.212	13.72	5.9	5.60	1.0	--

Pengchi Hardware (shandong) Co., Ltd. passed ISO9001:2008 quality management system certification, and actively prepared TS16949 quality system certification. At the same time, the company, in accordance with the requirements of national laboratory standards, is equipped with a full set of imported fastener quality testing instruments and professionals to strictly control and test the raw material procurement, finish milling, production and manufacturing, heat treatment, packaging and shipment and other processes. Ensure that each "XGP" screw can meet the technical standard requirements.

We own cold heading machines, hot heading machines, CNC lathes, CNC machining centers, and punching machines. With over a decade of experience, we have a team of over 30 people, including over 10 professional technicians. We utilize domestically produced high-tech equipment and regularly update it. Our extensive production experience and advanced technology make us a trusted source of expertise.

微信图片_20251113102757_23_32