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Fastener Sets & Assemblies › Assortment Kits & Mixed Fastener Sets

Underground Support 47mm Mining Friction Bolts Split Sets Rock Split Set Bolts

Updated 2026-11-04 · Markdown version

Model no. 33mm 39mm 42mm 47mm

US$8.88300–1,999 pieces

US$6.362,000–9,999 pieces

US$1.9610,000+ pieces

MOQ 300 pieces · Final price confirmed in your quote

Surface Treatment: Galvanized
Material: Carbon Steel
Color: Black,Silver
Length: Customized Length
Diameter: 33,40,42,43mm
Finish: Longer Life Ticn

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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	After Received 1year
Warranty	After Received 1year
Model NO.	33mm 39mm 42mm 47mm
Certification	CE, SGS
Surface Treatment	Galvanized
Manufacturing Process	Forging
Material	Carbon Steel
Product Name	Mining Friction Bolt Split Sets
Color	Black,Silver
Length	Customized Length
Diameter	33,40,42,43mm
Application	Mining,Tunneling
Feature	Easy Install
Delivery Time	15-30 Days
Quality	Excellent
OEM/ODM	Accpect
Finish	Longer Life Ticn
System of Measurement	Metric
Usage	Mine,Slope,Foundation Pit
Transport Package	Customized
Specification	Q235/355B/16Mn
Origin	China
HS Code	7308400100
Production Capacity	10000 Tons/Month
Our enterprise vision is	casting industry famous brand, building industrial and mining leading enterprises.
Accepted Delivery Terms	FOB,CIF,EXW,Express Delivery;
Accepted Payment Currency	USD;
Accepted Payment Type	T/T,Credit Card,Western Union,Cash;
Language Spoken	English,Chinese
Category	Assortment Kits & Mixed Fastener Sets

Technical parameters

Diameter(±0.5)	33mm	39mm	40mm	42mm	46mm	47mm
Length(±0.5)	1.2m	1.5m	1.9m	2.0m	2.5m	3m
Mining Plate(±0.5)	1401406mm,1501505mm,20020010mm
Material	Q235,16Mn,20 Mnsi

Description

Underground Support 47mm Mining Friction Bolts Split Sets Rock Split Set Bolts is part of our assortment kits & mixed fastener sets range (Fastener Sets & Assemblies).

Key details

Material: Carbon Steel
Diameter: 33,40,42,43mm
Length: Customized Length
Surface Treatment: Galvanized
Finish: Longer Life Ticn
Application: Mining,Tunneling
Certification: CE, SGS
Warranty: After Received 1year

Available configurations include surface treatment, material, color, length and diameter. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 300 pieces at US$1.96 – 8.88 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 Underground Support 47mm Mining Friction Bolts Split Sets Rock Split Set Bolts?

The listed minimum order is 300 pieces, at US$1.96 – 8.88 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$8.88 for 300–1,999 pieces; US$6.36 for 2,000–9,999 pieces; US$1.96 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 Underground Support 47mm Mining Friction Bolts Split Sets Rock Split Set Bolts?

Material: Carbon Steel; Diameter: 33,40,42,43mm; Length: Customized Length; Surface Treatment: Galvanized; Finish: Longer Life Ticn; Application: Mining,Tunneling. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include surface treatment, material, color, length and diameter. 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 assortment kits & mixed fastener sets are available?

The Assortment Kits & Mixed Fastener Sets category lists 3,161 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/fastener-sets-assemblies/assortment-kits-mixed-fastener-sets/

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$1.96 – 8.88MOQ 300 piecesGet a quote WA