Images are examples, some edited with AI. The technical data are authoritative. AI notice
Crowfoot spanner heavy-duty 540a HD size 7/8" with 3/8 inch square drive, length 52 mm - Stahlwille 02501044
Heavy-duty crowfoot spanner 540a HD with size 7/8 inch and 3/8 inch internal square drive, designed for particularly high loads such as stainless steel bolted joints. The open end can be fully used with standard ratchets and torque wrenches with fixed square. Length 52 mm, width 48 mm, weight 99 g, chrome-plated.
- Specialist dealer since 2009
- Invoice payment for regular customers
- Worldwide shipping
- Technical questions clarified with the manufacturer
Description
The heavy-duty crowfoot spanner 540a HD with size 7/8 inch tightens imperial nuts and bolts where a socket cannot be fitted over the joint, for example on pipe fittings. It is designed for particularly high loads, such as stainless steel bolted joints. Its 3/8 inch internal square drive fits ratchets or torque wrenches. With a length of 52 mm and a weight of 99 g it stays compact.
Benefits
- For particularly high loads, e.g. stainless steel bolted joints
- Full use of the open-ended spanner in combination with standard ratchets or torque wrenches with fixed square
- 3/8 inch internal square drive for drive tools with a matching external square
- Compact design: length L 52 mm, width B 48 mm, dimension a 11 mm
- Chrome-plated finish
Applications
Manual screwdriving on imperial fasteners with size 7/8" in confined spaces, combined with 3/8 inch ratchets, extensions and torque wrenches with square drive. On a torque wrench the crowfoot extends the lever arm, which must be taken into account when setting the torque.
Technical data
| Size (AF) | 7/8" |
|---|---|
| Internal square drive | 3/8" |
| Length L | 52 mm |
| Width B | 48 mm |
| Dimension a | 11 mm |
| Dimension s | 31.3 mm |
| Weight | 99 g |
| Operation | manual |
| Manufacturer | Stahlwille |
| Manufacturer Nr. | 02501044 |
| EAN | 4018754198108 |
| HS-Code | 82042000 |
| GPSR manufacturer information | STAHLWILLE Eduard Wille GmbH Lindenallee 27 DE-42349 Wuppertal www.stahlwille.com |
| Condition of article | New |
| Article authenticity | Original product |
| Country of Manufacture | Germany |
| Width | 48 mm |
| Overall length [mm] | 52 |
Downloads
Accessories
Crowfoot spanner heavy-duty 540a HD size 5/8" with 3/8 inch square drive, length 45 mm - Stahlwille 02501036
Item STW-02501036Crowfoot spanner heavy-duty 540a HD size 9/16" with 3/8 inch square drive, length 43.4 mm - Stahlwille 02501034
Item STW-02501034Crowfoot spanner heavy-duty 540a HD size 1/2" with 3/8 inch square drive, length 42 mm - Stahlwille 02501032
Item STW-02501032Crowfoot spanner heavy-duty 540a HD size 7/16" with 3/8 inch square drive, length 40 mm - Stahlwille 02501028
Item STW-02501028Crowfoot spanner heavy-duty 540a HD size 3/8" with 3/8 inch square drive, length 39 mm - Stahlwille 02501024
Item STW-02501024Crowfoot spanner heavy-duty 540a HD size 13/16" with 3/8 inch square drive, length 51 mm - Stahlwille 02501042
Item STW-02501042Crowfoot spanner heavy-duty 540a HD size 3/4" with 3/8 inch square drive, length 49 mm - Stahlwille 02501040
Item STW-02501040Questions about this item
Any other question?
Send us the item number and your question. We clarify technical details directly with the manufacturer and usually reply on the next working day.















