The fixture is designed to test the strength of fastening parts of the bottom of leather shoes nailed, screw, wood-studded, stitched fastening of soles at a temperature of (20 +15 -10 ) ° C according to GOST 9134-78. The maximum grip opening is 45 mm, the maximum height of the fixed end of the specimen is 36 mm. The fixture is attached to standard universal adapters of the testing machine in the tension zone. The device is allowed to be used with a load of up to 3 kN.