Stopper Bolts - Shoulder Type

Brand :
MISUMI
Caution
- [Specification Change] The materials and appearances of USTH/SUSTH/PSST/PSSTH will be changed sequentially starting in July 2025. Some part numbers are not subject to specification changes. Please see here for details. There is a possibility that products and packages before and after the change may be mixed in the same shipment, but there will be no problems with use.
Product Description
Use for receiving workpieces.
There are 2 type of material, urethane and resin.
Dimensional Drawing

Standard Straight Hex Socket Straight Standard Type, SR Hex Socket Type, SR [ ! ]Incomplete threaded portion of 2 x pitch is under the neck.
| M (Coarse) | D | B | (C) | H | h | t | t1 | m | (ℓ) | B1 | SR |
| 3 | 3.5 | 5.5 | 6.4 | 2 | 0.7 | 1.5 | 2 | 1.8 | - | - | 3.5 |
| 4 | 5 | 7 | 8.1 | 2.8 | 1.5 | 2.2 | 2.4 | 2.2 | 2 | 5 | |
| 5 | 6 | 8 | 9.2 | 3.5 | 2.3 | 3.2 | 2.8 | 2.5 | 6 | ||
| 6 | 8 | 10 | 11.5 | 4 | 2 | 2 | 2.6 | 3.6 | 3 | 3 | 8 |
| 8 | 10 | 13 | 15 | 5.5 | 2.8 | 5 | 4 | 4 | 10 | ||
| 10 | 13 | 17 | 19.6 | 7 | 3.2 | 6 | 5 | 5 | 13 | ||
| 12 | 15 | 19 | 21.9 | 8 | 3.5 | 7 | - | - | 15 |
Product Specifications
| Standard | Hex Socket Type | Stopper | Screw | [A]Accessory (Hex nut) | Resin, rubber How to mount | |||||||
| Straight Shape | SR Shape | Straight Shape | SR Shape | [M] Material | [ H ] Hardness | Operating temperature (°C) reference value | [M] Material | Strength class | [S] Surface treatment | [M] Material | [S] Surface treatment | |
| UST | USRT | USTH | USRTH | Urethane (Black) | Shore A90 | -20 to 70 | SCM435*² | 10.9 | Trivalent Chromate | SS400 | Trivalent Chromate | Fused (Thermosetting bonded) |
| SUST | SUSRT | SUSTH | SUSRTH | SUS304 | - | — | SUS304 Equivalent | — | ||||
| LUST | — | — | — | Low Repulsion Urethane (Gray) | Shore A70 | -20 to 70 | SCM435 | 10.9 | Bright chromate plating*³ | SS400 | Trivalent Chromate | Fused (Thermosetting bonded) |
| PUST | — | PUSTH | — | Polyacetal (white) | — | 70 or less*¹ | SCM435 | 10.9 | Trivalent Chromate | SS400 | Trivalent Chromate | Bonded (Ambient temperature bonded) |
| PSST | — | PSSTH | — | SUS304 | - | — | SUS304 Equivalent | — | ||||
| USTS | — | — | — | Silicon (light gray) | Shore A70 | 70 or less*¹ | SCM435 | 10.9 | Trivalent Chromate | SS400 | Trivalent Chromate | Fused (Thermosetting bonded) |
| SSTS | — | — | — | SUS304 | - | — | SUS304 Equivalent | — | ||||
The operating temperature of polyacetal/silicon is affected by the adhesive.
*2 Type: USTH uses SCM435 equivalent material. Please check the product specifications and dimensions when selecting a product.
*3 Bright chromate plating for LUST is being switched to trivalent chromate.
[ ! ]Only the urethane stopper part at the tip is not sold. (Standard products are not available)