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Press-Fit Ball-Nose Spring Plungers
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Flush Profile Knurled Body |
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Flush Profile Smooth Body |
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Flush Profile |
When you can't tap threads in your mounting surface, push these spring plungers into unthreaded holes. They work well in wood, plastic, and other soft materials that might crack if you try to cut threads. The spring-loaded ball compresses when a part presses against it, and then pops out into a notch or groove to hold the part in place.
For a snug fit, use an arbor press to install these spring plungers in a slightly smaller hole than the body diameter.
Flush Profile—These plungers mount flush against the surface to prevent snagging.
440C Stainless Steel Nose—The strongest, most wear-resistant stainless steel noses, these grind against hard metal surfaces without denting or scratching. However, they are not as corrosion resistant as 316 stainless steel.
420 Stainless Steel Nose—Highly wear resistant, the nose grinds against hard metal surfaces without denting or scratching. However, 420 stainless steel is not quite as corrosion resistant as 316 stainless steel.
Knurled Body—A knurled body grips more securely than a smooth body, so the spring plungers won't slip or rotate due to vibration.
Smooth Body—These spring plungers slide effortlessly into unthreaded holes, but don't grip quite as firmly as those with a knurled body.
Nose | Nose Force, lbf | Body | Each | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Extended Lg. | Dia. | Extended | Compressed | Material | Texture | Dia. | Lg. | 1-99 | 100-499 | 500-Up | |||
Flush Profile | |||||||||||||
440C Stainless Steel Nose | |||||||||||||
| 0.035" | 0.094" | 0.4 | 1.3 | 18-8 Stainless Steel | Knurled | 0.148" | 0.29" | 8262A15 | 00000 | 00000 | 00000 | ||
| 0.035" | 0.094" | 0.4 | 1.3 | Black-Oxide Steel | Knurled | 0.148" | 0.29" | 8262A11 | 0000 | 0000 | 0000 | ||
| 0.058" | 0.156" | 1 | 2.5 | 18-8 Stainless Steel | Knurled | 0.21" | 0.44" | 8262A32 | 0000 | 0000 | 0000 | ||
| 0.058" | 0.156" | 1 | 2.5 | Black-Oxide Steel | Knurled | 0.21" | 0.44" | 8262A31 | 0000 | 0000 | 0000 | ||
| 0.07" | 0.188" | 1.5 | 3.5 | 18-8 Stainless Steel | Knurled | 0.254" | 0.52" | 8262A16 | 0000 | 0000 | 0000 | ||
| 0.07" | 0.188" | 1.5 | 3.5 | Black-Oxide Steel | Knurled | 0.254" | 0.52" | 8262A12 | 0000 | 0000 | 0000 | ||
| 0.07" | 0.188" | 3 | 7 | 18-8 Stainless Steel | Knurled | 0.254" | 0.52" | 8262A34 | 0000 | 0000 | 0000 | ||
| 0.07" | 0.188" | 3 | 7 | Black-Oxide Steel | Knurled | 0.254" | 0.52" | 8262A33 | 0000 | 0000 | 0000 | ||
| 0.09" | 0.25" | 2 | 5 | 18-8 Stainless Steel | Knurled | 0.316" | 0.7" | 8262A36 | 0000 | 0000 | 0000 | ||
| 0.09" | 0.25" | 2 | 5 | Black-Oxide Steel | Knurled | 0.316" | 0.7" | 8262A35 | 0000 | 0000 | 0000 | ||
| 0.09" | 0.25" | 4 | 10 | 18-8 Stainless Steel | Knurled | 0.316" | 0.7" | 8262A38 | 0000 | 0000 | 0000 | ||
| 0.09" | 0.25" | 4 | 10 | Black-Oxide Steel | Knurled | 0.316" | 0.7" | 8262A37 | 0000 | 0000 | 0000 | ||
| 0.11" | 0.312" | 5 | 14 | 18-8 Stainless Steel | Knurled | 0.379" | 0.87" | 8262A41 | 0000 | 0000 | 0000 | ||
| 0.11" | 0.312" | 5 | 14 | Black-Oxide Steel | Knurled | 0.379" | 0.87" | 8262A39 | 0000 | 0000 | 0000 | ||
| 0.11" | 0.313" | 2.5 | 7 | 18-8 Stainless Steel | Knurled | 0.379" | 0.87" | 8262A17 | 0000 | 0000 | 0000 | ||
| 0.11" | 0.313" | 2.5 | 7 | Black-Oxide Steel | Knurled | 0.379" | 0.87" | 8262A13 | 0000 | 0000 | 0000 | ||
| 0.161" | 0.437" | 8 | 18 | Black-Oxide Steel | Knurled | 0.504" | 1.21" | 8262A42 | 0000 | 0000 | 0000 | ||
| 0.161" | 0.438" | 4 | 9 | 18-8 Stainless Steel | Knurled | 0.504" | 1.21" | 8262A18 | 0000 | 0000 | 0000 | ||
| 0.161" | 0.438" | 4 | 9 | Black-Oxide Steel | Knurled | 0.504" | 1.21" | 8262A14 | 0000 | 0000 | 0000 | ||
420 Stainless Steel Nose | |||||||||||||
| 0.65 mm | 2 mm | 1 | 1.7 | 18-8 Stainless Steel | Smooth | 3 mm | 7 mm | 8262A21 | 0000 | 0000 | 0000 | ||
| 0.8 mm | 2.5 mm | 1.3 | 3.2 | 18-8 Stainless Steel | Smooth | 3.5 mm | 9 mm | 8262A22 | 0000 | 0000 | 0000 | ||
| 0.9 mm | 3 mm | 1.8 | 3.2 | 18-8 Stainless Steel | Smooth | 4 mm | 11 mm | 8262A23 | 0000 | 0000 | 0000 | ||
| 1 mm | 3.5 mm | 2.5 | 4 | 18-8 Stainless Steel | Smooth | 5 mm | 13 mm | 8262A25 | 0000 | 0000 | 0000 | ||
| 1.5 mm | 4.5 mm | 4 | 7 | 18-8 Stainless Steel | Smooth | 6 mm | 15 mm | 8262A27 | 0000 | 0000 | 0000 | ||
