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Nuts › Nylon-Insert & All-Metal Lock Nuts

Self-Lock Nylon Prevailing Torque Flange Nuts DIN1666

Updated 2026-11-04 · Markdown version

Model no. DIN1666-M12-Zinc

US$0.002510,000–29,999 pieces

US$0.022830,000–49,999 pieces

US$0.016850,000+ pieces

MOQ 10,000 pieces · Final price confirmed in your quote

Material: Carbon Steel
Head Style: Hexagonal
Standard: DIN, ANSI, GB, JIS, GOST, BSW, Uni
Grade: 10.9
Material Name: Steel 45
Surface Treatment: Zinc

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Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order.

Specifications

Customization	Available
Material	Carbon Steel
Type	Hexagon Head
Model NO.	DIN1666-M12-Zinc
Connection	Common Bolt
Head Style	Hexagonal
Standard	DIN, ANSI, GB, JIS, GOST, BSW, Uni
Grade	10.9
Material Name	Steel 45
Property Class	10
Surface Treatment	Zinc
Transport Package	Euro Pallet+Carton
Specification	25kg/carton
Origin	China
HS Code	73181600
Production Capacity	1500tons/Month
Category	Nylon-Insert & All-Metal Lock Nuts

Technical parameters

DIN 1666

Thread size d	M8	M10	M12	M14	M16	M20
P	1	1	1.5	1.5	1.5	1.5
-	1.25	1.25	-	-	-
C min	1.2	1.5	1.8	2.1	2.4	3
da	8-8.75	10-10.8	12-13	14-15.1	16-17.3	20-21.6
dc max	17.9	21.8	26	29.9	34.5	42.8
dw min	15.8	19.6	23.8	27.6	31.9	39.9
e min	14.38	17.77	20.03	23.36	26.75	32.95
h	11.1-10.4	13.5-12.8	16.1-15.4	18.2-16.9	20.3-19	24.8-22.7
m min	7.6	9.6	11.6	13.3	15.3	18.7
mw min	4.6	5.9	6.8	7.7	8.9	10.7
s	13-12.73	16-15.73	18-17.73	21-20.67	24-23.67	30-29.16
r max	0.48	0.6	0.72	0.88	0.96	1.2

Our Factory Introduction

Description

Self-Lock Nylon Prevailing Torque Flange Nuts DIN1666 is part of our nylon-insert & all-metal lock nuts range (Nuts).

Key details

Type: Hexagon Head
Standard: DIN, ANSI, GB, JIS, GOST, BSW, Uni
Material: Carbon Steel
Grade: 10.9
Head Style: Hexagonal
Surface Treatment: Zinc
Connection: Common Bolt
Material Name: Steel 45

Available configurations include material, head style, standard, grade and material name. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 10,000 pieces at US$0.0025 – 0.0228 per piece. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you.

Frequently asked questions

What is the minimum order quantity (MOQ) for Self-Lock Nylon Prevailing Torque Flange Nuts DIN1666?

The listed minimum order is 10,000 pieces, at US$0.0025 – 0.0228 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

How does the price change with quantity?

Volume pricing: US$0.0025 for 10,000–29,999 pieces; US$0.0228 for 30,000–49,999 pieces; US$0.0168 for 50,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of Self-Lock Nylon Prevailing Torque Flange Nuts DIN1666?

Type: Hexagon Head; Standard: DIN, ANSI, GB, JIS, GOST, BSW, Uni; Material: Carbon Steel; Grade: 10.9; Head Style: Hexagonal; Surface Treatment: Zinc. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include material, head style, standard, grade and material name. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing.

What is the lead time and how is it shipped?

Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment.

Which other nylon-insert & all-metal lock nuts are available?

The Nylon-Insert & All-Metal Lock Nuts category lists 2,493 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/nuts/nylon-insert-all-metal-lock-nuts/

How we work

Specified, checked and shipped by Engineering Hardware & Fasteners

Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing.

DIN, ISO, ASTM, ANSI, JIS and GB standard parts
Non-standard parts made to your drawing
Dimensions, thread gauges and plating checked before packing
Export cartons and pallets, consolidated mixed orders
Samples available for approval before mass production

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US$0.0025 – 0.0228MOQ 10,000 piecesGet a quote WA