Hex Long Nuts Long Nuts Hex Coupling Nuts Long Round Nuts Carbon Steel Zinc Plated Cr3+ DIN6334

Product Description

PRODUCT PARAMETER

HEX NUT

Hexagon nuts are versatile fasteners with a six-sided head, designed to mate with bolts for secure clamping. Their standardized geometry allows easy tightening with wrenches or sockets. Common materials include carbon steel (zinc-plated for rust resistance), stainless steel (304/316 for corrosion environments), and alloy steel. Strength grades (e.g., 4.8, 8.8, 10) define tensile resistance, while standards like DIN 934, ISO 4032, and ASME B18.2.2 specify dimensions (M3–M100) and thread types (metric/inch). The threaded interior creates preload force via mechanical engagement, often paired with washers to distribute pressure.

DIN934

Thread size					M1	M1.2	M1.4	M1.6	(M1.7)
d
P		thread pitch	coarse thread		0.25	0.25	0.3	0.35	0.35
			Fine teeth 1		/	/	/	/	/
			Fine teeth 2		/	/	/	/	/
m		Max=Nominal			0.8	1	1.2	1.3	1.4
		Min			0.55	0.75	0.95	1.05	1.15
mw		Min			0.44	0.6	0.76	0.84	0.92
s		Max=Nominal			2.5	3	3	3.2	3.5
		Min			2.4	2.9	2.9	3.02	3.38
e′		Min			2.71	3.28	3.28	3.41	3.82
Thousands of pieces (steel)≈kg					0.03	0.054	0.063	0.076	0.1
k	Nominal	43	45	48	50	57	63	69	79
	Min	42.5	44.5	47.5	49.5	56.4	62.4	68.4	78.4
	Max	43.5	45.5	48.5	50.5	57.6	63.6	69.6	79.6
k1	Min	29.8	31.2	33.2	34.6	40.3	43.7	47.9	54.9
r	Min	2	2	2	2	2.5	2.5	2.5	2.5
s	Max=Nominal	100	105	110	115	130	145	155	180
	Min	97.8	102.8	107.8	112.8	127.5	142.5	152.5	177.5

Thread size					M10	M12	(M14)	M16	(M18)
d
P		thread pitch	coarse thread		1.5	1.75	2	2	2.5
			Fine teeth 1		1	1.5	1.5	1.5	1.5
			Fine teeth 2		1.25	1.25	/	/	2
m		Max=Nominal			8	10	11	13	15
		Min			7.64	9.64	10.3	12.3	14.3
mw		Min			6.11	7.71	8.24	9.84	11.44
s		Max=Nominal			17	19	22	24	27
		Min			16.73	18.67	21.67	23.67	26.16
e′		Min			18.9	21.1	24.49	26.75	29.56
Thousands of pieces (steel)≈kg					11.6	17.3	25	33.3	49.4

Thread size					(M52)	M56	(M60)	M64	(M68)
d
P		thread pitch	coarse thread		5	5.5	5.5	6	6
			Fine teeth 1		3	4	4	4	/
			Fine teeth 2		/	/	/	/	4
m		Max=Nominal			42	45	48	51	54
		Min			40.4	43.4	46.4	49.1	52.1
mw		Min			32.3	34.7	37.1	39.3	41.7
s		Max=Nominal			80	85	90	95	100
		Min			78.1	82.8	87.8	92.8	97.8
e′		Min			88.25	93.56	99.21	104.86	110.51
Thousands of pieces (steel)≈kg					1220	1420	1690	1980	2300

ABOUT US

LONGSHI FASTENERS MANUFACTURING CO.,LTD.,

Longshi Fastener Manufacturing Co., Ltd., founded in 2008, is located in Shahe City, Hebei Province, close to the country's largestLarge fastener industrial cluster - Yongnian standard parts Industrial Park. The company headquarters covers an area of 21 thousand square meters, the annual output value of 200 million yuan, with more than 200 employees, with domestic More than 100 sets of advanced production equipment. It is a "manufacturing + service" type enterprise integrating fastener production, intelligent warehousing and e-commerce sales. The company's construction of the sea screw e-commerce park is located in Yongnian District, Handan City, Hebei Province, covers an area of 45 acres, the park planning and construction of office area, production area, packaging area, storage area, etc., to provide fastener production, packaging, warehousing, e-commerce sales and other services. Longshi mainly produces high quality and high strength fasteners, and "Longshi" screws have become a well-known brand in the industry. Longshi always adhere to quality first, reputation first. From raw material procurement, design and development, production and processing to products strict quality control is implemented in every link of quality testing and sales to win the recognition of our customers. The company has established standardized product testing laboratories and quality testing processes and standards to ensure that products strictly comply with national standards.

FAQ

Q1: What is your minimum order quantity (MOQ)? Do you charge extra for small orders?
100 pieces MOQ (most peers require 1,000+), no price premium for small orders. First-time customers for cross-border e-commerce/trade get free samples.
Q2:Do you support custom orders? How long does the customization process take?
Longshi Advantage: 8-dimensional customization (material, specification, surface treatment, etc.), with 3D design drawings + process plans.
Q3: What if an item is out of stock?
Stockout rate <0.1% (peers: 10+%), with real-time inventory monitoring. For extreme stockouts, free upgraded alternatives are provided (peers often leave clients waiting indefinitely).
Q4: Do you provide technical support, such as installation guidance or drawing optimization?
Dedicated 1v1 engineer team offering free technical support.
Q5:Can I visit your factory or arrange a factory audit?
Support online factory tours (real-time video of production lines/laboratories) and offline visits (pick-up service available).