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Model 2170A

2-7/8” Wide Flat-Back Aluminum Hidden Shackle Rekeyable Padlock – w/o Mounting Holes




PACLOCK’s 2170A hockey puck-style padlock offers superior security; is precision CNC machined in the USA for quality and dependability; and comes standard with a 6-pin bump and pick resistant rekeyable cylinder. The 2170A has a flat-back without holes to fit shrouded Hasps, including PACLOCK’s 1/4” steel PL770 and PL775. The solid body 2170A is machined from 6061 aircraft-grade aluminum, anodized in one of ten available colors, and resistant to corrosive environments.

The 2170A’s hidden shackle design protects your lock from direct access by bolt cutters and hacksaws. With only one moving part, the 2170A lacks the environmental vulnerabilities that traditional, shackled padlocks have. Even after years of exposure to the elements, this lock will still function.

Features & Options


  • Bolt cutter proof
  • Flat back design w/o mounting holes
  • Available in 10 anodized colors
  • Pick and bump resistant technology
  • Security pins
  • Bypass and shim proof
  • Key changes available: 40,000+
  • Cylinder included
  • Keys included: 2
  • Country of origin: USA
  • BAA/TAA compliant

Available Options

  • Your Logo, Your Locks™ custom laser engraving and hard stamping
  • Restricted keyways
  • Key retaining
  • Keyed different (KD)
  • Master keyed (MK)
  • Grand master keyed (GMK)
  • Additional keys

Specs & Dimensions


  • Body material: 6061 aircraft-grade aluminum
  • Body width: 2-7/8″
  • Shackle material: Steel
  • Shackle diameter: 13/32″
  • Keyway: P0, PR1, PR2
  • Cylinder: 5 or 6-pin standard rekeyable


  • PACLOCK 2170

    Model 2170

    2-7/8” Wide Flat-Back Hardened Steel Hidden Shackle Rekeyable Padlock - w/o Mounting Holes

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  • PACLOCK 2170A Blue

    Model 2173A

    2-7/8” Wide Flat-Back Aluminum Hidden Shackle Rekeyable Padlock - w/ Mounting Holes for American Lock®’s A801 Hasp & PACLOCK’s PL770, PL775, & PL801S Hasps

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Competitor Reference

American Lock®Master Lock®
Not AvailableNot Available

Works With

Shrouded hasps.