Custom Design Carbon Steel Ring Eye Bolts Round Ring Nuts

Product Description

PRODUCT PARAMETER

Eye Nut

Eye nuts are fasteners with a circular ring (eye) at the top, designed for lifting, pulling, or suspending loads. The eye allows secure attachment of chains, ropes, or cables, while the threaded body mates with bolts or studs. Made of carbon steel (zinc-plated), stainless steel (316 for corrosion), or alloy steel, they meet standards like ISO 8759, DIN 580, with sizes M6–M100 and strength grades (e.g., 4.8, 8.8). Key feature: Safe Working Load (SWL) ratings must not be exceeded.

Applications include:

Lifting & Hoisting: Secure loads on cranes, forklifts, or hoists in construction and manufacturing.
Marine/Shipping: Anchor ropes, chains, or rigging on boats and cargo vessels.
Industrial Equipment: Hang machinery, pipes, or fixtures in factories (e.g., overhead conveyors).
Aerospace/Transportation: Attach harnesses or components in aircraft and vehicles for maintenance.
DIY/Outdoor Use: Fix swings, banners, or climbing equipment with corrosion-resistant types.

Eye Nut

Thread size			M6	M8	M10	M12	M14	M16	M18
d
dk	Nominal		20	20	25	30	35	35	40
	Min		19.5	19.5	24.5	29.5	34.5	34.5	39.5
	Max		20.9	20.9	25.9	30.9	36.1	36.1	41.1
d2	Nominal		36	36	45	54	63	63	72
	Min		35.5	35.5	44.5	53.5	62.5	62.5	71.5
	Max		37.1	37.1	46.1	55.1	64.1	64.1	73.1
d1	Nominal		20	20	25	30	35	35	40
	Min		19.1	19.1	24.1	29.1	33.9	33.9	38.9
	Max		20.5	20.5	25.5	30.5	35.5	35.5	40.5
k	Nominal		8.5	8.5	10	11	13	13	16
	Min		8	8	9.5	10.5	12.5	12.5	15.5
	Max		9.4	9.4	10.9	11.9	13.9	13.9	16.9
h	Nominal		36	36	45	53	62	62	71
	Min		35.5	35.5	44.5	52.5	61.5	61.5	70.5
	Max		37.1	37.1	46.1	54.1	63.1	63.1	72.1
d0	Nominal		8	8	10	12	14	14	16
	Min		7.5	7.5	9.5	11.5	13.5	13.5	15.5
	Max		8.9	8.9	10.9	12.9	14.9	14.9	16.9

Thread size			M36	M39	M42	M45	M48	M52	M56
d
dk	Nominal		75	85	85	100	100	110	110
	Min		74.3	84.3	84.3	99.2	99.2	108.9	108.9
	Max		76.5	86.5	86.5	101.7	101.7	112.1	112.1
d2	Nominal		126	144	144	166	166	184	184
	Min		125.2	143.2	143.2	164.9	164.9	182.8	182.8
	Max		127.7	145.7	145.7	168.1	168.1	186.4	186.4
d1	Nominal		70	80	80	90	90	100	100
	Min		68.5	78.5	78.5	88.3	88.3	98.1	98.1
	Max		70.7	80.7	80.7	90.8	90.8	100.9	100.9
k	Nominal		30	35	35	40	40	45	45
	Min		29.3	34.3	34.3	39.2	39.2	44.1	44.1
	Max		31.3	36.5	36.5	41.7	41.7	46.9	46.9
h	Nominal		128	147	147	168	168	187	187
	Min		127.2	146.2	146.2	166.9	166.9	185.8	185.8
	Max		129.7	148.7	148.7	170.1	170.1	189.4	189.4
d0	Nominal		28	32	32	38	38	42	42
	Min		27.3	31.3	31.3	37.2	37.2	41.1	41.1
	Max		29.3	33.3	33.3	39.7	39.7	43.9	43.9

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).