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Nuts › Nylon-Insert & All-Metal Lock Nuts

Zinc Plated K Lock Nut with External Serrated Locking Teeth

Updated 2026-11-04 · Markdown version

Model no. K-Lock nut

US$0.0961,000–4,999 pieces

US$0.065,000–19,999 pieces

US$0.03620,000–49,999 pieces

US$0.01250,000+ pieces

MOQ 1,000 pieces · Final price confirmed in your quote

Material: Carbon Steel,Stainless Steel,Alloy Steel etc
Head Style: Hexagonal
Standard: DIN, ANSI, GB
Grade: Class 4.8 & 6.8
Package Size: 28.00cm * 20.00cm * 20.00cm

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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,Stainless Steel,Alloy Steel etc
Type	Hexagon Head
Model NO.	K-Lock nut
Connection	Common Bolt
Head Style	Hexagonal
Standard	DIN, ANSI, GB
Grade	Class 4.8 & 6.8
MOQ	1000PCS
Manufacture Processing	CNC Machining
Experience	for 20 Years
Quality Control	100% QC Test
Delivery Time	10-15 Days
Sample	Sample Avaliable
Drawings	Accept
Delivery Method	by Sea, by Air or by Express Service
Transport Package	Plastic Bag/Boxes and Cartons/Pallets/Customized
Specification	M3-M72
Origin	China
HS Code	7318159001
Production Capacity	10000000PCS/Month
Package Size	28.00cm * 20.00cm * 20.00cm
Package Gross Weight	16.000kg
Lead Time	10 days (1 - 1000 Pieces) To be negotiated ( > 1000 Pieces)
Category	Nylon-Insert & All-Metal Lock Nuts

Technical parameters

Material	1.StainlessSteel:SS201,SS303,SS304,SS316,SS410,SS4202.Steel:C45(K1045), C46(K1046),C203.Carbon Steel: 1010,1035,1045
Grade	SAE J429 Gr.2, 5,8; ASTM A307Gr.A,A193 B7,B8,B8M,A194 2H, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 and etc.
Finish	Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G and etc.
Connection	Common Nut
Standard	ISO, DIN, ANSI, JIS, BS and Non-standard
Sample Service	Samples are all in free.
Certificate	ISO9001,CE, SGS, BV
Packing	Bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand
Payment terms	FOB, CIF, CFR, L/C, or others.
Delivery method	by sea, by air or by express service
Application	Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating and etc.

Description

Zinc Plated K Lock Nut with External Serrated Locking Teeth is part of our nylon-insert & all-metal lock nuts range (Nuts).

Key details

Type: Hexagon Head
Standard: DIN, ANSI, GB
Material: Carbon Steel,Stainless Steel,Alloy Steel etc
Grade: Class 4.8 & 6.8
Head Style: Hexagonal
Connection: Common Bolt
Manufacture Processing: CNC Machining
Experience: for 20 Years

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 1,000 pieces at US$0.012 – 0.096 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 Zinc Plated K Lock Nut with External Serrated Locking Teeth?

The listed minimum order is 1,000 pieces, at US$0.012 – 0.096 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$0.096 for 1,000–4,999 pieces; US$0.06 for 5,000–19,999 pieces; US$0.036 for 20,000–49,999 pieces; US$0.012 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 Zinc Plated K Lock Nut with External Serrated Locking Teeth?

Type: Hexagon Head; Standard: DIN, ANSI, GB; Material: Carbon Steel,Stainless Steel,Alloy Steel etc; Grade: Class 4.8 & 6.8; Head Style: Hexagonal; Connection: Common Bolt. 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 package size. 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

More about us → · Request a sample or custom quote →

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US$0.012 – 0.096MOQ 1,000 piecesGet a quote WA