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Pins & Dowel Fasteners › Weld, Insulation & Other Fastening Pins

Insulation Fasteners for Welding Pins

Updated 2026-11-04 · Markdown version

Model no. QP250

US$0.481,000–9,999 pieces

US$0.4210,000+ pieces

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

Material: Iron
Surface Finishing: Zinc Plated
Customized: Customized

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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

Material	Iron
Surface Finishing	Zinc Plated
Certification	ISO
Model NO.	QP250
Customized	Customized
Transport Package	Packing in Boxes
Specification	3/8" 7/8" 1" 1-3/8" 1-1/2" 1-7/8" 2-7/8"
Origin	China
HS Code	731700
Production Capacity	100000PCS Per Day
cupped weld pins	these pins actually weld to the sheetmetal duct and he head of the pin holds the insulation in place, A pin welder machine is required for these pins, Gripnail power point weld pins are used to fasten insulation to the inside of sheet metal air ducts.
Category	Weld, Insulation & Other Fastening Pins

Technical parameters

Product	Quantity Per box	Weight per box	Box size
2.7×17mm long Cupped head weld Pins	1000Pcs	3.35KG	26×26×13 CM
2.7×22mm long Cupped head weld Pins	1000Pcs	3.5KG	26×26×13 CM
2.7×32mm long Cupped head weld Pins	1000Pcs	4.0KG	26×26×13 CM
2.7×42mm long Cupped head weld Pins	1000Pcs	4.5KG	26×26×15 CM
2.7×50mm long Cupped head weld Pins	1000Pcs	5.1KG	26×26×18CM
2.7×100mm long Cupped head weld Pins	1000Pcs	7.6KG	26×26×32 CM

Description

Insulation Fasteners for Welding Pins is part of our weld, insulation & other fastening pins range (Pins & Dowel Fasteners).

Key details

Material: Iron
Certification: ISO
Surface Finishing: Zinc Plated

Available configurations include material, surface finishing and customized. 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$0.42 – 0.48 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 Insulation Fasteners for Welding Pins?

The listed minimum order is 1,000 pieces, at US$0.42 – 0.48 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$0.48 for 1,000–9,999 pieces; US$0.42 for 10,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of Insulation Fasteners for Welding Pins?

Material: Iron; Certification: ISO; Surface Finishing: Zinc Plated. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include material, surface finishing 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 weld, insulation & other fastening pins are available?

The Weld, Insulation & Other Fastening Pins category lists 789 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/pins-dowel-fasteners/weld-insulation-other-fastening-pins/

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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Request a quote for this product

US$0.42 – 0.48MOQ 1,000 piecesGet a quote WA