Materials
| Type | Round Flanged | Square Flanged | Compact Flanged | [ M ]Material | [ S ]Surface Treatment | [ A ]Accessories |
| Standard | STHWRB | STHWSB | STHWCB | 1045 Carbon Steel | Black Oxide | Hex Socket Head Cap Screw 1 pc. |
| STHWR | STHWS | STHWC | Electroless Nickel Plating | Hex Socket Head Cap Screw 1 pc. (Stainless Steel) |
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| SSTHWR | SSTHWS | SSTHWC | 304 Stainless Steel | – | ||
| Long Sleeve | STHWRBL | STHWSBL | STHWCBL | 1045 Carbon Steel | Black Oxide | Hex Socket Head Cap Screw 2 pcs. |
| STHWRL | STHWSL | STHWCL | Electroless Nickel Plating | Hex Socket Head Cap Screw 2 pcs. (Stainless Steel) |
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| SSTHWRL | SSTHWSL | SSTHWCL | 304 Stainless Steel | – |
