Electroplated Thin Hexagonal Lock Nut for Industrial Pipe and Valve Systems

Product Description

PRODUCT PARAMETER

Thin nut

Thin nuts (or jam nuts) have a reduced axial height compared to standard hex nuts, saving space in compact assemblies. Made from carbon steel (zinc - plated), stainless steel (304/316), or alloy steel, they follow standards like DIN 439 and ISO 4035, with sizes ranging from M4 to M36.

Applications:

Aerospace & Automotive: Secure parts in tight spaces such as engine bays and aircraft interiors where height is limited.
Precision Machinery: Fasten shafts, bearings, or fixtures in CNC machines, robotics, and medical devices to avoid interference.
Electronics & Enclosures: Connect thin metal or plastic panels in telecom racks, consumer electronics, or battery packs, supporting miniaturization.
Mold & Tooling: Lock components in injection molds or jigs where clearance is restricted.

Key Points:
Often used as locking nuts (paired with a thicker nut) to prevent loosening. Their slim design is suitable for vibration - prone setups or applications needing frequent adjustments. Corrosion - resistant coatings ensure durability in harsh environments.

Thread Spec		M1.6	M2	M2.5	M3	(M3.5)	M4	M5	M6
D
P	pitch	0.35	0.4	0.45	0.5	0.6	0.7	0.8	1
da	Max	1.84	2.3	2.9	3.45	4	4.6	5.75	6.75
	Min	1.6	2	2.5	3	3.5	4	5	6
dw	Min	2.4	3.1	4.1	4.6	5.1	5.9	6.9	8.9
e	Min	3.41	4.32	5.45	6.01	6.58	7.66	8.79	11.05
m	Max	1	1.2	1.6	1.8	2	2.2	2.7	3.2
	Min	0.75	0.95	1.35	1.55	1.75	1.95	2.45	2.9
mw	Min	0.6	0.8	1.1	1.2	1.4	1.6	2	2.3
s	Maximum value = nominal value	3.2	4	5	5.5	6	7	8	10
	Min	3.02	3.82	4.82	5.32	5.82	6.78	7.78	9.78

Thread Spec		(M22)	M24	(M27)	M30	(M33)	M36	(M39)	M42
D
P	pitch	2.5	3	3	3.5	3.5	4	4	4.5
da	Max	23.7	25.9	29.1	32.4	35.6	38.9	42.1	45.4
	Min	22	24	27	30	33	36	39	42
dw	Min	31.4	33.2	38	42.8	46.6	51.1	55.9	60
e	Min	37.29	39.55	45.2	50.85	55.37	60.79	66.44	71.3
m	Max	11	12	13.5	15	16.5	18	19.5	21
	Min	9.9	10.9	12.4	13.9	15.4	16.9	18.2	19.7
mw	Min	7.9	8.7	9.9	11.1	12.3	13.5	14.6	15.8
s	Maximum value = nominal value	34	36	41	46	50	55	60	65
	Min	33	35	40	45	49	53.8	58.8	63.1

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).