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Nuts › Nylon-Insert & All-Metal Lock Nuts

Stainless Steel 304 316 Lock Nut

Updated 2026-11-04 · Markdown version

Model no. Heavy/Middle/Light

US$1.801–99 pieces

US$1.56100–299 pieces

US$1.44300–499 pieces

US$1.32500+ pieces

MOQ 1 piece · Final price confirmed in your quote

Head Code: Round
Thread Distribution: Internal Thread
Surface: Polish
Material: Stainless Steel
Customized: Customized
Thread: BSPT/NPT
Standard: ASTM / JIS / DIN / BS / GB/GOST
Model-1: Tee(Straight and Reducing)/Elbow (45/90/180 Deg)

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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
Head Code	Round
Thread Distribution	Internal Thread
Surface	Polish
Material	Stainless Steel
Technics	Casting
Customized	Customized
Certification	CQC, CCC, PSE, TUV, VDE
Warranty	5 Years
Name	Stainless Steel Pipe Fittings
Thread	BSPT/NPT
Stainless Steel	304 304L 316 316L
Standard	ASTM / JIS / DIN / BS / GB/GOST
Model-1	Tee(Straight and Reducing)/Elbow (45/90/180 Deg)
Model-2	180 Deg Return/Cap
Model-3	Reducer(Concentric and Eccentric)
Type	Threaded
Szie	1/2"-6"(DN15-DN150)
MOQ	1 PCS
Lead Time	10-30 Days
Related Products	CS Nipples/Gi Fittings/Flanges/Valves
Model	Heavy/Middle/Light
Packaging Details	Cartons ,Pallets
Transport Package	Cartons
Specification	1/2"-6"(Dn15-Dn150)
Origin	Hebei
HS Code	7307290000
Production Capacity	100000 Tons Per Year
Answer	The purchase volume of mixed products is 4 tons
Category	Nylon-Insert & All-Metal Lock Nuts

Technical parameters

Sockets, Nipples, Hexagon/Round Caps, Plugs, Locknuts, Flanges,
Material	High quality stainless steel AISI 304,316,304L,316L
Standard	ANSI,DIN,JIS,BS
Thread	NPT,BSP,BSPT,DIN2999
Size	1/4",3/8",1/2",3/4",1",11/4",11/2",2",21/2",3",4",5",6
Model	Elbows, Tees, Crosses, Bends, Unions, Bushings, Lateral Y Braches,
Side Outlet Tees, Side Outlet Elbows, etc.
Related products	1. Carbon steel nipples and sockets	2. Flanges
3. Carbon steel butt-welding fittings	4. Pipes
5. High-pressure fittings	6. Valves
7. P.T.F.E .thread seal tape	8. Brass fittings
9. Ductile iron pipe fittings	10. Copper fittings
11. Grooved fittings	12. Sanitary fittings, etc.
Technics	Casting,Welding
Connection	Male, Female
Shape	Equal, Reducing
Certificate	BSI, ISO900
Applications	Suitable for Pipe lines connect of water, steam, air, gas, oil and so on.
Buyer's drawings or designs are available.
Package	1. Cartons without pallets.
2. Cartons with pallets.
Or as buyer's requirements.
Delivery detail
According to the quantities and specifications of each order.
Normal delivery time is from 30 to 45 days after receiving the deposit.

Description

Stainless Steel 304 316 Lock Nut is part of our nylon-insert & all-metal lock nuts range (Nuts).

Key details

Type: Threaded
Standard: ASTM / JIS / DIN / BS / GB/GOST
Material: Stainless Steel
Thread: BSPT/NPT
Certification: CQC, CCC, PSE, TUV, VDE
Head Code: Round
Thread Distribution: Internal Thread
Surface: Polish

Available configurations include head code, thread distribution, surface, material and customized. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 1 piece at US$1.32 – 1.80 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 Stainless Steel 304 316 Lock Nut?

The listed minimum order is 1 piece, at US$1.32 – 1.80 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$1.80 for 1–99 pieces; US$1.56 for 100–299 pieces; US$1.44 for 300–499 pieces; US$1.32 for 500+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of Stainless Steel 304 316 Lock Nut?

Type: Threaded; Standard: ASTM / JIS / DIN / BS / GB/GOST; Material: Stainless Steel; Thread: BSPT/NPT; Certification: CQC, CCC, PSE, TUV, VDE; Head Code: Round. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include head code, thread distribution, surface, material and customized. 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$1.32 – 1.80MOQ 1 pieceGet a quote WA