--- title: "Q235 Q355 3cr12 Mining Split Bolt Set Friction Bolt" description: "Q235 Q355 3cr12 Mining Split Bolt Set Friction Bolt — Assortment Kits & Mixed Fastener Sets. MOQ 100 pieces, US$2.23 – 3.00." url: https://engineeringhardware.com/product/q235-q355-3cr12-mining-split-bolt-set-friction-bolt/ source: Engineering Hardware & Fasteners --- # Q235 Q355 3cr12 Mining Split Bolt Set Friction Bolt [![Q235 Q355 3cr12 Mining Split Bolt Set Friction Bolt](https://img.engineeringhardware.com/Q235-Q355-3cr12-Mining-Split-Bolt-Set-Friction-Bolt.webp)](https://img.engineeringhardware.com/Q235-Q355-3cr12-Mining-Split-Bolt-Set-Friction-Bolt.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Fastener Sets & Assemblies › Assortment Kits & Mixed Fastener Sets](https://engineeringhardware.com/fastener-products/fastener-sets-assemblies/assortment-kits-mixed-fastener-sets/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/q235-q355-3cr12-mining-split-bolt-set-friction-bolt.md) Model no. **Split Set Bolts** | **US$3.00**100–4,999 pieces | **US$2.59**5,000–9,999 pieces | **US$2.23**10,000+ pieces | | --- | --- | --- | MOQ 100 pieces · Final price confirmed in your quote - **Tolerance:** +0/-0.2mm - **Heat Treatment:** Annealed - **Tensile Strength:** >120kN - **Yield Strength:** >125kN - **Surface Treatment:** Galvanize or Not - **Packing:** as Buyer Requirments - **Retaining Ring Diameter:** 6.5mm - **Package Size:** 15.00cm * 10.00cm * 5.00cm Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Q235%20Q355%203cr12%20Mining%20Split%20Bolt%20Set%20Friction%20Bolt%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fq235-q355-3cr12-mining-split-bolt-set-friction-bolt%2F) 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. | Split Set Bolts | | Type | Filter | | Application | Building Construction | | Certification | CE, ISO9001: 2000, SGS | | Condition | New | | Tolerance | +0/-0.2mm | | Heat Treatment | Annealed | | Processing Service | Bending, Welding, Decoiling, Punching, Cutting | | Tensile Strength | >120kN | | Yield Strength | >125kN | | Report | SGS | | Quality Control | 100% Inspection | | Delivery Time | Within 10 Days | | Surface Treatment | Galvanize or Not | | Packing | as Buyer Requirments | | Retaining Ring Diameter | 6.5mm | | Drawing Force | 80kN | | Bearing Capacity | 65kN | | Transport Package | Standard Seaworthy Packing | | Specification | 33 40 42 43 | | Origin | China | | HS Code | 7308400100 | | Production Capacity | 10000 Tons/Month | | Package Size | 15.00cm * 10.00cm * 5.00cm | | Package Gross Weight | 1.500kg | | Installation Procedure | 1. Preparation & Drilling | | Standard Warranty | 12 months or 2,000 operating hours (whichever comes first). | | Extended Warranty | Optional coverage up to 36 months. | | Global Support | 24/7 technical assistance and spare parts supply. | | Training | On-site or remote operation/maintenance training. | | Category | [Assortment Kits & Mixed Fastener Sets](https://engineeringhardware.com/fastener-products/fastener-sets-assemblies/assortment-kits-mixed-fastener-sets/) | ## Technical parameters | Type | SS33 | SS39 | SS47(46) | | --- | --- | --- | --- | | Outer Dia (mm) | 33 | 39 | 46 | | Wall Thick (mm) | 2-2.5 | 2-2.5 | 2.5-3.2 | | Weight (kg/m) | 1.67 | 1.92 | 2.71 | | Bearing Plate (mm) | 150×150×4 | 150×150×4 | 150×150×4 | | Borehole Dia (mm) | 30-32 | 35-38 | 43-45.5 | | Bolt Length (m) | 0.9-2.4 | 0.9-3.0 | 0.9-3.0 | | Min Yield Strength (kN) | 70 | 85 | 120 | | Min Tensile Strength (kN) | 95 | 115 | 160 | | Cross Section Area | 212 | 245 | 345 | | Typical Anchorage (kN min.) | 20 | 20 | 20 | ## Description Q235 Q355 3cr12 Mining Split Bolt Set Friction Bolt is part of our assortment kits & mixed fastener sets range (Fastener Sets & Assemblies). ### Key details - **Type:** Filter - **Surface Treatment:** Galvanize or Not - **Application:** Building Construction - **Certification:** CE, ISO9001: 2000, SGS - **Warranty:** After Received 1year - **Condition:** New - **Tolerance:** +0/-0.2mm - **Heat Treatment:** Annealed Available configurations include tolerance, heat treatment, tensile strength, yield strength and surface treatment. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 100 pieces at US$2.23 – 3.00 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 Q235 Q355 3cr12 Mining Split Bolt Set Friction Bolt? The listed minimum order is 100 pieces, at US$2.23 – 3.00 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$3.00 for 100–4,999 pieces; US$2.59 for 5,000–9,999 pieces; US$2.23 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 Q235 Q355 3cr12 Mining Split Bolt Set Friction Bolt? Type: Filter; Surface Treatment: Galvanize or Not; Application: Building Construction; Certification: CE, ISO9001: 2000, SGS; Warranty: After Received 1year; Condition: New. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include tolerance, heat treatment, tensile strength, yield strength and surface treatment. 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/](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 [![Production floor](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor-1024x683.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor.webp) Production floor [![Inspection bench](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench.webp) Inspection bench [![Sorting & 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custom quote →](https://engineeringhardware.com/contact/) ## Request a quote for this product ## Related products [All Assortment Kits & Mixed Fastener Sets →](https://engineeringhardware.com/fastener-products/fastener-sets-assemblies/assortment-kits-mixed-fastener-sets/) [![OEM Galvanized U-Bolt Plate Hanger Kit for Trailer Parts](https://img.engineeringhardware.com/OEM-Galvanized-U-Bolt-Plate-Hanger-Kit-for-Trailer-Parts.webp)](https://engineeringhardware.com/product/oem-galvanized-u-bolt-plate-hanger-kit-for-trailer-parts/) Assortment Kits & Mixed Fastener Sets ### [OEM Galvanized U-Bolt Plate Hanger Kit for Trailer Parts](https://engineeringhardware.com/product/oem-galvanized-u-bolt-plate-hanger-kit-for-trailer-parts/) Suspension U-Bolt Kit · Steel **US$3.60 – 7.20**MOQ 100 pieces [![Heavy-Duty Stainless Steel Hex Bolt and Nut Set M3-M64 for Reliable 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