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Washers › Bonded, Sealing & Roofing Washers

Galvanized Fastener Waterproof Roof Washer

Updated 2026-11-04 · Markdown version

Model no. PENNACCS GW901

US$0.12 – 2.40 / piece

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

Color: Can Be 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

Customization	Available
After-sales Service	Provide
Application	Indoor, Outdoor
Model NO.	PENNACCS GW901
Certification	CE, ISO
Shape	Square, Round or Customized
Color	Can Be Customized
Advantage	Easy Construction
Function	Fix Waterproof Membrane
Mildew Proof	Mildew Proof
Usage	Outdoor, Indoor
Outstanding Feat	Superior Quality
Long Services	No Less Than 15 Years
Application Range	Construction, Building, Underground Projects
Prefabricated Accessories	Can Be Customized
Value-Added Service	Drawing Design/Site Construction Direction
Transport Package	Standard Shipping Packaging or Customized
Specification	Can Be Customized
Origin	China
HS Code	731822
Production Capacity	10000 Pieces/Day
Key benefits include	1.
Category	Bonded, Sealing & Roofing Washers

Technical parameters

Model	Materials	Width	Length
PENNACCS F001	Aluminum alloy	25±3 mm	2000 mm
PENNACCS F002	Galvanized steel	25±3 mm	2000 mm
PENNACCS NC	Galvanized steel	6.3 mm	35-210 mm
PENNACCS GW901	Galvanized steel	82*40 mm
PENNACCS GW902	Galvanized steel	80*38 mm
PENNACCS GW903	Galvanized steel	40*40 mm
PENNACCS GW904	Galvanized steel	70*70 mm
PENNACCS GW905	Galvanized steel	82*40 mm

Description

Galvanized Fastener Waterproof Roof Washer is part of our bonded, sealing & roofing washers range (Washers).

Key details

Application: Indoor, Outdoor
Certification: CE, ISO
Shape: Square, Round or Customized
Color: Can Be Customized
Advantage: Easy Construction
Function: Fix Waterproof Membrane
Mildew Proof: Mildew Proof
Usage: Outdoor, Indoor

Available configurations include color. 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$0.12 – 2.40 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 Galvanized Fastener Waterproof Roof Washer?

The listed minimum order is 1,000 pieces, at US$0.12 – 2.40 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

What are the main specifications of Galvanized Fastener Waterproof Roof Washer?

Application: Indoor, Outdoor; Certification: CE, ISO; Shape: Square, Round or Customized; Color: Can Be Customized; Advantage: Easy Construction; Function: Fix Waterproof Membrane. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include color. 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 bonded, sealing & roofing washers are available?

The Bonded, Sealing & Roofing Washers category lists 2,033 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/washers/bonded-sealing-roofing-washers/

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$0.12 – 2.40MOQ 1,000 piecesGet a quote WA