Striking Box-End Wrench | Phosphated Heavy-Duty Slugging Ring Spanner | DIN Standard Alloy Steel Hammer Wrench

Heavy-duty striking box-end wrench forged from premium alloy steel with secure enclosed ring engagement, phosphated rust protection, and DIN standard compliance. Reinforced striking end can be used with a hammer for 22mm–120mm nuts, bolts, valves, and flange fasteners. Ideal for petrochemical, pipelines, mining, marine, wind power, and heavy equipment maintenance. OEM/ODM and wholesale available.

Product Description

This striking box-end wrench is forged from high-quality alloy steel with a thick, heavy-duty construction for large fasteners and high-torque maintenance work. The enclosed box-end profile provides more complete contact around hex nuts and bolt heads, ensuring more even force distribution and helping reduce slipping or damage to fastener corners.

The reinforced striking end can be used with a hammer or sledgehammer to apply additional impact force and torque, making it ideal for loosening or tightening rusted, seized, or long-installed industrial fasteners. The phosphated surface finish offers good rust resistance, corrosion protection, and wear durability for demanding industrial environments.

Available in sizes from 22mm to 120mm and manufactured in accordance with DIN standards, this slugging ring wrench is ideal for petrochemical maintenance, pipelines, valves, flanges, mining equipment, shipbuilding, wind power, and heavy machinery servicing.

Features

  • Forged Alloy Steel Construction: Thick, strong, and impact-resistant body for heavy-duty industrial use.
  • Enclosed Box-End Profile: Wraps around hex nuts and bolts for more even force distribution, stable engagement, and reduced slipping risk.
  • Reinforced Striking End: Designed to be struck with a hammer for additional impact force and torque.
  • Phosphated Surface Finish: Improves rust resistance, corrosion protection, and wear durability.
  • DIN Standard Compliance: Manufactured according to DIN standard requirements for industrial reliability and standardized procurement.
  • Suitable for High-Torque Work: Ideal for rusted, seized, large, or long-installed fasteners.
  • Wide Large-Size Range: Available from 22mm to 120mm.

Specifications

Item No. Size Wrench Length (L) Head Width (W) Carton Qty. Unit Weight Gross Weight
W16022 22 mm 155 mm 38 mm 50 pcs 0.30 kg 19.00 kg
W16024 24 mm 155 mm 42 mm 50 pcs 0.30 kg 19.00 kg
W16027 27 mm 165 mm 46 mm 40 pcs 0.40 kg 15.40 kg
W16030 30 mm 185 mm 50 mm 40 pcs 0.60 kg 22.50 kg
W16032 32 mm 185 mm 53 mm 40 pcs 0.60 kg 22.50 kg
W16034 34 mm 205 mm 55 mm 20 pcs 0.80 kg 29.80 kg
W16036 36 mm 205 mm 58 mm 20 pcs 0.80 kg 20.20 kg
W16038 38 mm 205 mm 61 mm 20 pcs 0.80 kg 20.20 kg
W16041 41 mm 230 mm 64 mm 20 pcs 0.90 kg 22.50 kg
W16046 46 mm 240 mm 73 mm 20 pcs 1.10 kg 27.40 kg
W16050 50 mm 255 mm 78 mm 10 pcs 1.45 kg 35.00 kg
W16055 55 mm 270 mm 86 mm 10 pcs 1.70 kg 21.40 kg
W16060 60 mm 280 mm 92 mm 10 pcs 2.00 kg 25.00 kg
W16065 65 mm 300 mm 102 mm 10 pcs 2.40 kg 29.80 kg
W16070 70 mm 330 mm 108 mm 5 pcs 3.10 kg 25.80 kg
W16075 75 mm 330 mm 113 mm 5 pcs 3.10 kg 25.80 kg
W16080 80 mm 345 mm 124 mm 5 pcs 3.90 kg 24.40 kg
W16085 85 mm 345 mm 126 mm 5 pcs 3.90 kg 24.40 kg
W16090 90 mm 380 mm 135 mm 5 pcs 4.90 kg 20.50 kg
W16095 95 mm 385 mm 142 mm 5 pcs 5.10 kg 21.50 kg
W16100 100 mm 405 mm 148 mm 5 pcs 5.50 kg 23.00 kg
W16105 105 mm 410 mm 155 mm 5 pcs 5.60 kg 23.50 kg
W16110 110 mm 460 mm 162 mm 3 pcs 7.80 kg 24.40 kg
W16115 115 mm 470 mm 168 mm 3 pcs 8.00 kg 25.00 kg
W16120 120 mm 475 mm 182 mm 3 pcs 8.80 kg 27.40 kg

Applications

This striking box-end wrench is suitable for:

  • Oil, gas, petrochemical, and refinery equipment maintenance
  • Industrial pipelines, valves, flanges, and large connection installation
  • Wind power, thermal power, hydropower, and energy equipment maintenance
  • Shipbuilding, offshore engineering, and port equipment repair
  • Mining machinery, construction machinery, and heavy equipment servicing
  • Steel structures, bridges, tunnels, and major construction projects
  • Railway, rail transit, and heavy vehicle maintenance
  • Factory production lines, mechanical workshops, and equipment installation
  • Large hex nuts, bolts, flange fasteners, and industrial connections

Why Choose Us

Secure Box-End Engagement

The enclosed ring profile provides complete contact around fasteners for stable force transfer and reduced risk of slipping in high-torque applications.

Heavy-Duty Striking Structure

The reinforced striking end and robust wrench body are designed for industrial fastening and removal tasks requiring impact assistance.

Premium Forged Alloy Steel

Quality alloy steel provides dependable strength, toughness, and impact resistance for demanding heavy-duty work.

DIN Standard Manufacturing

Produced according to DIN standards for consistent specifications and reliable industrial procurement.

Phosphated Rust Protection

The phosphated finish provides practical rust and corrosion resistance in outdoor, humid, and industrial environments.

Complete Size Range & OEM Support

Available in sizes from 22mm to 120mm, with custom logos, packaging, finishes, and industrial wrench sets available.

FAQ

Q1: What is the difference between a striking box-end wrench and a striking open-end wrench?
A1: A striking box-end wrench has an enclosed ring end that surrounds the fastener more completely for more even force distribution. A striking open-end wrench has an open jaw that allows side access to nuts and bolts. The box-end version is preferred when full fastener engagement is possible.

Q2: What is this tool mainly used for?
A2: It is mainly used for tightening and loosening large nuts, bolts, flanges, valves, and industrial connections in petrochemical, marine, mining, wind power, pipeline, and heavy machinery applications.

Q3: Does this product meet DIN standards?
A3: Yes. The product information indicates DIN standard compliance, making it suitable for industrial maintenance, engineering installation, and standardized procurement.

Q4: What are the benefits of phosphate treatment?
A4: Phosphate treatment improves rust resistance, corrosion protection, and wear durability, making the wrench suitable for outdoor, humid, and industrial environments.

Q5: Can it be used on rusted or seized fasteners?
A5: Yes. The striking end provides impact assistance. For severely rusted or seized fasteners, use penetrating lubricant and follow suitable removal procedures.

Q6: What safety precautions should be followed?
A6: Ensure the box end fully engages the correctly sized fastener. Strike only the designated striking end with a suitable hammer. Wear eye and hand protection, avoid side loading, and do not exceed the tool’s safe working capacity.

Q7: Do you support customization?
A7: Yes. OEM/ODM customization is available for sizes, lengths, logos, phosphate finish colors, packaging, and heavy-duty wrench set configurations.

OEM / ODM (Optional)

We offer flexible OEM / ODM services:

  • Custom Dimensions: Box-end size, wrench length, head width, body thickness, and striking-end structure can be customized.
  • Custom Branding: Laser engraving, steel stamping, screen printing, ink printing, labels, and private-label packaging.
  • Custom Surface Finishes: Black phosphate, black oxide, sandblasting, chrome plating, pearl nickel, and more.
  • Custom Packaging: Hang cards, plastic holders, fabric pouches, color boxes, tool cases, inner boxes, and printed cartons.
  • Custom Industrial Tool Sets: Common 22mm–120mm sizes can be configured for petrochemical, pipeline, mining, marine, and heavy equipment maintenance sets.
  • Sampling and Mass Production: Support for drawing-based or sample-based development, sample approval, and stable bulk production.

Please send us your size list, drawings, logo artwork, samples, or project requirements for a tailored solution.