The 270-piece spring steel round lengthening shim assortment includes lengthening shims in various sizes and comes in a compartmented plastic case for storage and organization. Each shim fits around a shoulder screw's threads and under its shoulder to extend the screw's length. The 0.005" shims are precision die cut from 1095 blue tempered spring steel, and the 0.015" and 0.032" shims are die cut from 1075 tempered spring steel. Spring steel offers flexibility and a balance of strength and toughness. The material is magnetic.

Shims are thin pieces of material placed between objects for a variety of uses, including added support, improved leveling, increased insulation, tighter seals, or better spacing. They also can be used to fill gaps between machine parts that are prone to wear. Shapes include round, notched, and slotted.

What's in the Box?

• (15) 1/4" x 0.005" lengthening shims
• (15) 1/4" x 0.015" lengthening shims
• (15) 1/4" x 0.032" lengthening shims
• (15) 5/16" x 0.005" lengthening shims
• (15) 5/16" x 0.015" lengthening shims
• (15) 5/16" x 0.032" lengthening shims
• (15) 3/8" x 0.005" lengthening shims
• (15) 3/8" x 0.015" lengthening shims
• (15) 3/8" x 0.032" lengthening shims
• (15) 1/2" x 0.005" lengthening shims
• (15) 1/2" x 0.015" lengthening shims
• (15) 1/2" x 0.032" lengthening shims
• (15) 5/8" x 0.005" lengthening shims
• (15) 5/8" x 0.015" lengthening shims
• (15) 5/8" x 0.032" lengthening shims
• (15) 3/4" x 0.005" lengthening shims
• (15) 3/4" x 0.015" lengthening shims
• (15) 3/4" x 0.032" lengthening shims
• (1) plastic case