HECKMANN BUILDING PRODUCTS INC.
1501 N. 31st Avenue
Melrose Park, IL 60160-2911
800-621-4140 and 708-865-2403
FAX: 708-865-2640
#460 NAILER CEILING INSERTS
Heckmann Technical Guide
SIZE: Inserts are 2-3/16" (55.563mm) long x 1" (25.4mm) wide, made from mill-galvanized steel conforming to ASTM A526 G90.
APPLICATION: The insert is driven into the wood form wherever a hanger is required. When the form is removed, the blade, which has a 5/16 (7.94mm) diameter hole, will project below the concrete to receive a pencil rod or wire.
TEST CONDITIONS: Inserts were cast into concrete slabs 8" (203.2mm) x 10" (254mm) x 3" (76.2mm) deep made of Portland Cement Type 1 3-1 ratio allowed to set over 28 days. The inserts were centered in the slab. A 5/16" (7.94mm) bolt was placed through the hole in the insert and attached to the crossram of the test machine. Samples were tested to failure at a crosshead speed of 0.5"/minute (12.7mm/minute).
| TEST RESULTS | NO. INSERTS TESTED | AVERAGE PULLOUT |
| 3 | 1,259 lbs |
Insert 1: The metal completely tore and separated on one side
of the hole at approximately 45o above the horizontal center line of the hole. The metal
opposite the tear was bent upward. The insert did not pull out of the concrete. Maximum
force 1,398 lbs.
Insert 2: Failure same as #1. Maximum force 1,340 lbs.
Insert 3: Failure same as #1. Maximum force 1,440 lbs.
© Copyright 1999 Heckmann Building Products Inc.