The new Olympus Lock T37 Series pin-tumbler T-bolt lock for metal bank drawers, office desks and related furniture can be used to retrofit the National (CompX) C8137 T-bolt lock with the National D4291 keyway.
The Olympus T37 is designed to fit into a 3/4” tall by 5/8” wide modified oval opening. The lock is secured using the standard brass fixing nut or an optional spring clip. The standard centerline mounting hole is approximately 27/32” beneath the top edge of the drawer to accommodate the standard deadbolt. The T37 deadbolt is removable to accommodate installation, removal and changing the bitting.

The T37 Series removable stainless steel deadbolt is available in two lengths, standard and long. The standard bolt extends 7/16” when locked. The long bolt is 2.84”, more than one inch longer than the standard bolt, providing locking options for non-standard applications. Note: The stainless steel composition of the bolt is designed to prevent it from being broken if the drawer is slid in with the bolt extended.

The four pin tumbler T37 Series T-bolt locks are “top load” rekeyable. The T37 lock uses the 0.101” diameter pin tumblers. Note: These smaller than cylindrical lock size pin tumblers are available in the Olympus N1 Pin Kit.

To simplify changing the bitting configuration, Olympus uses a slide-on spring retainer. This spring retainer is not swedged or peened in place. To prevent the spring retainer from coming loose, Olympus designed the T37 lock with the dual purpose patented retainer staple cylinder removal mechanism. This retainer staple secures the plug within the housing and prevents the spring retainer from sliding off.