Standard & made-to-drawing parts
Checked before shipping
Air, sea & express delivery

Washers › Bonded, Sealing & Roofing Washers

Reliable Xrfscrew Fasteners with EPDM Washers for Enhanced Performance

Updated 2026-11-04 · Markdown version

Model no. SDS-C-Sandwich-004

US$2,5441–26 tons

US$2,46027–139 tons

US$2,424140–274 tons

US$2,376275–549 tons

US$2,340550+ tons

MOQ 1 ton · Final price confirmed in your quote

Material: Carbon Steel
Shape of Head: Hex Head
Surface Finishing: Ruspert Coating
Customized: Customized
Length: 50mm-254mm
Material Standard: C1022A
Standard: DIN7504, GB15856, ISO 15481
Finish: Ral Color Coating, Zinc Plated, Ruspert

Get a quote WhatsApp

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
Shape of Head	Hex Head
Model NO.	SDS-C-Sandwich-004
Surface Finishing	Ruspert Coating
Certification	ISO, GS, RoHS, CE, Cma
Customized	Customized
Length	50mm-254mm
Material Standard	C1022A
Standard	DIN7504, GB15856, ISO 15481
Finish	Ral Color Coating, Zinc Plated, Ruspert
Drive	Pozi. Phillips
Usage	Building, Decoration, Construction, Window
Transport Package	Export Shipping Standard Package
Specification	M3.5, M3.9, M4.2, M4.8, M5.5, M6.3
Origin	Tianjin, China
HS Code	73181400
Production Capacity	3100ton/Month
Dia.	M2.9, M3.5, M3.9, M4.2, M4.8, M5.5, M6.3
Logo and Mark	According to customer's requirement
Paying Terms	By T/T, L/C, D/P, PayPal
Head type	Countersunk, Flat, Hex, Pan, Truss head
Trade terms	FOB TIANIN, FCA, CFR, CIF, EXW Tianjin Factory etc
Drive type	Corss Recessed, Phillips, Pozi , H or Z
Delivery time	Within 15-45 days
Thread type	Regular thread
Packing term	Bulk, Woven bag, Ton bag, color box, carton, wooden case, pallet
Point type	Sharp or Drill
Feature	Corrosion resistance, Precise dimension, easy to install
Application	Building & Decoration, Industrial Aluminum Light Steel frame Construction, Door and Window Manufacturing, Wood Structure
Package terms	Woven bag, carton, color box+color carton, pallet etc
Delivery terms	Wthin 15-45 days after receiving deposit date
Shipping terms	By Sea, By Land or By Air
Our Advantages	Professional Manufacturer of Screws and Fasteners in China
Our Feature	Honest, Quality and Professional
Main Products	Fasteners Screws
Category	Bonded, Sealing & Roofing Washers

Technical parameters

Material standard:	C1022A/Q195/Q235/45#/55#/22A	Standard:	GB 15856, DIN7504, ISO15481 & Factory Standard
Dia.:	M2.9, M3.5, M3.9, M4.2, M4.8, M5.5, M6.3	Logo and Mark:	According to customer's requirement
Length:	50mm-254mm	Paying Terms:	By T/T, L/C, D/P, PayPal
Head type:	Countersunk, Flat, Hex, Pan, Truss head	Trade terms:	FOB TIANIN, FCA, CFR, CIF, EXW Tianjin Factory etc
Drive type:	Corss Recessed, Phillips, Pozi , H or Z	Delivery time:	Within 15-45 days days after receiving deposit date
Thread type:	Regular thread	Packing term:	Bulk, Woven bag, Ton bag, color box, carton, wooden case, pallet
Point type:	Sharp or Drill	Feature:	Corrosion resistance, Precise dimension, easy to install
Finish	Gray/Black phosphated/White/Yellow Zinc Plated, Nickel Plated, Dacromet, Ruspert, Color Coating
Application:	Building & Decoration, Industrial Aluminum Light Steel frame Construction, Door and Window Manufacturing, Wood Structure

Package terms:	Woven bag, carton, color box+color carton, pallet etc	Delivery terms:	Wthin 15-45 days after receiving deposit date
Customize as customer's request	Shipping terms:	By Sea, By Land or By Air

Our Advantages:	Professional Manufacturer of Screws and Fasteners in China	Our Feature:	Honest, Quality and Professional
Three of our own Factories in Tianjin, China	As per DIN, ISO, GB standard or our customer's standard
280 sets of automatic production Equipment	Responsible, Efficient and Pragmatic
Professional Technology, QC and Foreign Trade Team	Continuous innovation in technology & management
Accept OEM and ODM orders	Win-Win for further cooperation

Description

Reliable Xrfscrew Fasteners with EPDM Washers for Enhanced Performance is part of our bonded, sealing & roofing washers range (Washers).

Key details

Standard: DIN7504, GB15856, ISO 15481
Material: Carbon Steel
Length: 50mm-254mm
Head type: Countersunk, Flat, Hex, Pan, Truss head
Drive: Pozi. Phillips
Finish: Ral Color Coating, Zinc Plated, Ruspert
Certification: ISO, GS, RoHS, CE, Cma
Shape of Head: Hex Head

Available configurations include material, shape of head, surface finishing, customized and length. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 1 ton at US$2,340 – 2,544 per ton. 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 Reliable Xrfscrew Fasteners with EPDM Washers for Enhanced Performance?

The listed minimum order is 1 ton, at US$2,340 – 2,544 per ton. 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$2,544 for 1–26 tons; US$2,460 for 27–139 tons; US$2,424 for 140–274 tons; US$2,376 for 275–549 tons; US$2,340 for 550+ tons. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of Reliable Xrfscrew Fasteners with EPDM Washers for Enhanced Performance?

Standard: DIN7504, GB15856, ISO 15481; Material: Carbon Steel; Length: 50mm-254mm; Head type: Countersunk, Flat, Hex, Pan, Truss head; Drive: Pozi. Phillips; Finish: Ral Color Coating, Zinc Plated, Ruspert. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include material, shape of head, surface finishing, customized and length. 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 →

Request a quote for this product

US$2,340 – 2,544MOQ 1 tonGet a quote WA