Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
AMPCO Box End Wrench: Natural, 20 mm Head Size, 7 1/2 in Overall Lg, Std - Metric, Single End, 12-Point, Box End Nonsparking Wrenches
AMPCOMetric, Single End, 12-Point, Box End Nonsparking Wrenches

AMPCO Box End Wrench: Natural, 20 mm Head Size, 7 1/2 in Overall Lg, Std

The AMPCO Box End Wrench is a metric, single-end, 12-point, box end nonsparking wrench in a natural finish. It features a 20 mm head size, 7 1/2 in overall length, standard length, and a 0° head offset angle (MPN 4412).

SKU 3G-OTH-278091

Brand
AMPCO
Item
Box End Wrench: Natural, 20 mm Head Size, 7 1/2 in Overall Lg, Std
Category
Metric, Single End, 12-Point, Box End Nonsparking Wrenches
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

AMPCO
Manufacturer Part Number
4412
Type
Std
Overall Lg
7 1/2 in
Head Size
20 mm
Head Offset Angle
0°
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

AMPCO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The AMPCO Box End Wrench is a metric, single-end, 12-point, box end nonsparking wrench in a natural finish. It features a 20 mm head size, 7 1/2 in overall length, standard length, and a 0° head offset angle (MPN 4412).

Frequently Asked Questions

What is the AMPCO Box End Wrench used for?

The AMPCO Box End Wrench is a nonsparking, 12-point, single-end wrench designed for use in hazardous environments where sparking tools could ignite flammable gases, vapors, or dust. It is commonly used in oil refineries, chemical plants, and other industrial settings requiring safe, nonsparking hand tools.

What are the specifications of the AMPCO Box End Wrench?

The AMPCO Box End Wrench (MPN 4412) has a 20 mm head size, 7 1/2 in overall length, standard length, and a 0° head offset angle. It is a metric, single-end, 12-point, box end nonsparking wrench with a natural finish. The brand is AMPCO.

Where to buy the AMPCO Box End Wrench worldwide?

You can source the AMPCO Box End Wrench through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine AMPCO nonsparking tools to industrial buyers globally.

How to select the correct AMPCO Box End Wrench size?

To select the correct AMPCO Box End Wrench, match the head size (20 mm) to the fastener you need to turn. Ensure the wrench is the proper type (metric, 12-point, single-end) for your application. For nonsparking requirements, verify the tool is made from AMPCO's nonsparking alloy. Overall length and offset angle affect access in tight spaces.

Used in

Common applications for AMPCO
Oil and gas refinery maintenance — AMPCO combination wrench model 1512 for tightening flanges in classified areas
Chemical processing plant — AMPCO box-end wrench model 4422 for valve adjustment in volatile atmospheres
Grain handling facility — AMPCO open-end wrench model WO-22X23 for equipment repair in dust-hazard zones
Pharmaceutical manufacturing — AMPCO slotted screwdriver model S-39 for accessing control panels in cleanrooms
Mining operations — AMPCO impact socket model I-1D1-7/16 (4-PT) for heavy equipment maintenance underground
Aerospace fuel handling — AMPCO nut driver model ND-15MM for assembly of fuel system components

AMPCO Products

3G Electric supplies AMPCO metric, single end, 12-point, box end nonsparking wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
AMPCO Box End Wrench: Natural, 21 mm Head Size, 7 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4414). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO
AMPCO Box End Wrench: Natural, 21 mm Head Size, 7 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4414). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO Box End Wrench: Natural, 18 mm Head Size, 7 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4408). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO
AMPCO Box End Wrench: Natural, 18 mm Head Size, 7 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4408). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO Box End Wrench: Natural, 19 mm Head Size, 7 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4410). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO
AMPCO Box End Wrench: Natural, 19 mm Head Size, 7 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4410). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO Box End Wrench: Natural, 22 mm Head Size, 7 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4416). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO
AMPCO Box End Wrench: Natural, 22 mm Head Size, 7 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4416). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO Box End Wrench: Natural, 14 mm Head Size, 6 in Overall Lg, Std, 0° Head Offset Angle (MPN 4400). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO
AMPCO Box End Wrench: Natural, 14 mm Head Size, 6 in Overall Lg, Std, 0° Head Offset Angle (MPN 4400). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO Box End Wrench: Natural, 15 mm Head Size, 6 in Overall Lg, Std, 0° Head Offset Angle (MPN 4402). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO
AMPCO Box End Wrench: Natural, 15 mm Head Size, 6 in Overall Lg, Std, 0° Head Offset Angle (MPN 4402). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.

More from AMPCO

View all AMPCO parts →
AMPCO Box End Wrench: Natural, 41 mm Head Size, 13 in Overall Lg, Std, 0° Head Offset Angle (MPN 4448). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO
AMPCO Box End Wrench: Natural, 41 mm Head Size, 13 in Overall Lg, Std, 0° Head Offset Angle (MPN 4448). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO Box End Wrench: Natural, 77 mm Head Size, 24 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4482). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO
AMPCO Box End Wrench: Natural, 77 mm Head Size, 24 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4482). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO Box End Wrench: Natural, 80 mm Head Size, 24 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4484). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO
AMPCO Box End Wrench: Natural, 80 mm Head Size, 24 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4484). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO Box End Wrench: Natural, 82 mm Head Size, 24 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4486). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO
AMPCO Box End Wrench: Natural, 82 mm Head Size, 24 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4486). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO Box End Wrench: Natural, 35 mm Head Size, 13 in Overall Lg, Std, 0° Head Offset Angle (MPN 4440). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO
AMPCO Box End Wrench: Natural, 35 mm Head Size, 13 in Overall Lg, Std, 0° Head Offset Angle (MPN 4440). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO Box End Wrench: Natural, 37 mm Head Size, 13 in Overall Lg, Std, 0° Head Offset Angle (MPN 4444). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO
AMPCO Box End Wrench: Natural, 37 mm Head Size, 13 in Overall Lg, Std, 0° Head Offset Angle (MPN 4444). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO Box End Wrench: Natural, 34 mm Head Size, 10 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4438). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO
AMPCO Box End Wrench: Natural, 34 mm Head Size, 10 1/2 in Overall Lg, Std, 0° Head Offset Angle (MPN 4438). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO Box End Wrench: Natural, 24 mm Head Size, 9 in Overall Lg, Std, 0° Head Offset Angle (MPN 4420). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.
AMPCO
AMPCO Box End Wrench: Natural, 24 mm Head Size, 9 in Overall Lg, Std, 0° Head Offset Angle (MPN 4420). Key specifications — attr309427: Natural; attr309429: No; attr324926: AMPCO.