ISO 2936 (DIN 911) Ball End Hexagon Socket L-Keys Cr-V

The ISO 2936 (DIN 911) ball end hexagon socket L-key is specifically engineered for fasteners located in obstructed or misaligned assembly points where straight-line access is physically impossible. Featuring a precision ball-profile tip on the long arm, it allows off-axis tool entry at an angle of up to 25°, enabling continuous tightening without removing components. The short arm retains a conventional flat hexagonal profile for applying maximum final tightening torque.

Manufactured from heat-treated chrome-vanadium steel (58 CrV4 / 1.8161) with a black oxide anti-corrosion finish, its spherical neck geometry resists localized torsional stress without premature shearing. Conforming to strict dimensional tolerances, it guarantees immediate socket engagement in recessed machinery, electrical panels, and automotive assemblies.

Benefits:

  • 25° Off-Axis Swivel Entry: Ball-end geometry permits smooth fastener engagement and rotation at angles up to 25° from the screw centerline.
  • Dual-Action Functionality: Angled approach on the long arm facilitates rapid threading past obstacles, while the standard short arm secures final high-torque tightening.
  • Torsional Neck Resilience (58 CrV4): Premium Cr-V alloy formulation reinforces the ball neck against shearing forces, preventing breakage under rotational resistance.

Product characteristics

Technical dimensional drawing of an ISO 2936 (DIN 911) ball end hexagon socket L-key

Material:
Chromium vanadium steel 58 CrV4 (1.8161)

Finish:
Blued

Hardness:
S 1,5 to 6 min.: 52 HRC
S 8 min.: 50 HRC
S 10 to 12 min.: 48 HRC

Part number S Dimension mme MáxL1 L2 Box Quantity Outer Box Quantity
01070710 2.5 2.82 84 18 50 400
01070729 3 3.39 88 18 50 400
01070737 4 4.53 104 25 50 400
01070745 5 5.67 112 28 50 400
01070753 6 6.81 135 32 50 400
01070761 8 9.09 155 36 20 160
01070770 10 11.37 160 40 20 80
01070788 12 13.65 200 45 20 20
Brochure-LLAVBOLA.pdf
Download |
Other products that may interest you