| Safety Hoist Rings (SHR) | 41 |
| Screw Clamp Adaptors | 64MF |
| Screw Clamps | 62, 64, 65, 68, 216, 64MF |
| Screw Jacks | 152-153, 48-49MF |
| Screw Pumps (SP) | 83SW |
| Screw Rest Pads | 148, 46MF |
| Screw Rest Buttons (SRB) | 148 |
| Screws, Adjustable Torque Thumb | 73 |
| Screws, Bodies for Swivel | 70 |
| Screws, Clamp Rest | 186 |
| Screws, Feet for Swivel | 71 |
| Screws, Half Turn | 61 |
| Screws, Knurled Head | 72 |
| Screws, Locating | 34MF |
| Screws, Quarter Turn | 61 |
| Screws, Shoulder (SS) | 158 |
| Screws, Swivel Head (SHS) | 69 |
| Screws, Thumb, Adjustable Torque | 73 |
| Sections, Cast | 265-267 |
| Self-Centering Vises | 67-70SW |
| Sequence Valves | 91-92SW, 70MF |
| Serrata Groove Drill Bushings (SG) | 51BU |
| Serrated Adjustable Edge Clamps (SAC) | 204, 62MF |
| Serrated Chuck Jaws | 3-7CJ, 8CJ, 8-13CJ, 24-25CJ |
| Serrated Double Edge Clamps (SDC) | 206 |
| Serrated Edge Clamps | 204-206, 62MF |
| Serrated Face Washers | 185 |
| Serrated Fixed Edge (SFC) | 205 |
| Serrated Press Fit Drill Bushings (SP, SPM) | 21-22BU |
| Sets, Modular Fixturing Starter | 10-15MF |
| Shackle Hoist Rings (SHHR) | 41, 45 |
| Shackle Pins (see Lifting Pins) | 13 |
| Shackles | 47 |
| Shims, Height | 40MF |
| Shoulder Construction Balls (SCB) | 155 |
| Shoulder Pins (SP) | 2 |
| Shoulder Screws (SS) | 184 |
| Shoulder Support Cylinders | 43MF |
| Shutoff Valves | 97SW |
| Side-Pull Hoist Rings (SPHR) | 42-43 |
| Side Stops | 62SW |
| Sideways Mounting Blocks | 36MF |
| Simplex Hammers | 173-175 |
| Single Cams | 189 |
| Slip/Fixed Renewable Bushings (S, SC, SF, SFM) | 23-28BU |
| Slotted-Heel Clamp Straps (SHA) | 217-221, 52MF |
| Slotted-Heel Padded Clamp Straps (SHPA) | 221 |
| Slotted Locator Bushings (SLLB) | 5 |
| Socket-Head Cap Screws (SHCS) | 34MF |
| Soft Chuck Jaws | 1-39CJ |
| Soft-Face Punches (SFP) | 179 |
| Solenoid Valves | 88SW |
| Solid Handles (SH) | 86 |
| Spacer Blocks | 56MF |
| Spacer Shims (see Height Shims) | 40MF |
| Speed-Ball Handles (SBH) | 92 |
| Spherical Nuts and Washers (SNW) | 183 |
|
| Spherical-Radius Locator Buttons (SLB) | 146 |
| Spherical Trunnions | 269 |
| Spherical Washers (SW, SNW) | 183 |
| Spindles, Toggle Clamp | 67-69TC |
| Spring-Loaded Spindles (SL) | 69TC |
| Spring-Loaded Spindles (SL) | 69TC |
| Spring Plungers (SPS, SPN, SSPS, SSPN) | 126-129 |
| Spring-Plunger Wrenches (SPW) | 122 |
| Spring-Plunger Wrenches (SPW) | 122 |
| Springs, Clamp (SPG) | 187 |
| Square Cast Sections | 267 |
| Square Grippers (SG, SGB, SGC, SGT) | 143 |
| Square-Serrated Keys (SQK) | 25CJ |
| Square Pallet Tooling Plates | 245, 19MF |
| Standard Adjustable Spindles | 57MF |
| Star Knobs (SK) | 53 |
| Starter Sets, Modular Fixturing | 10-15MF |
| Steel Handles | 89 |
| Step Blocks (SB) | 191 |
| Step Clamps (STC) | 190 |
| Step Fixture Keys (SFK) | 158 |
| Step Plug Gage Assemblies | 234-235 |
| Step Plug Gages (SPGD, SPGS) | 234-235 |
| Straddle Cam-Clamp Assemblies (SCA) | 220 |
| Straight Index Plungers (SIP, SIPB) | 119 |
| Strap Clamps | 214-231 |
| Stud Leveling Feet (SLF, SLFN) | 136-137 |
| Studs | 193 |
| Subplate Locating Keys (SLKD, SLKR) | 160 |
| Support Cylinders | 42-43MF |
| Support Riser Blocks | 37MF |
| Supports, Edge | 41MF |
| Supports, Extension | 38-39MF |
| Supports, Work | 49-57MF |
| Sure-Lock Fixture Keys (SLFK) | 159 |
| SWIFTSURE Power Workholding | 1-128SW |
| Swing Bolts (SB) | 188 |
| Swing C Clamps (SCC) | 170 |
| Swing C Washers (SCW) | 184 |
| Swing-Clamp Assemblies (SWA) | 210-211, 58MF |
| Swing Clamps, Air | 26-27SW |
| Swing Clamps, Hydraulic (SC, SCA, SCD, SCH, SCDH) | 17-24SW, 68MF |
| Swing Clamps, Manual | 210-211, 58-59MF |
| Switches, Pressure | 117SW |
| Swivel Contact Bolts | 144, 146, 57MF, 128SW |
| Swivel-Foot Spindles (SF) | 69TC |
| Swivel-Head Screws (SHS) | 69 |
| Swivel-Heel Clamp Straps (SWHA) | 231 |
| Swivel Hoist Rings (SHR) | 30-31 |
| Swivel Nuts (SN) | 141 |
| Swivel Pads (SPA) | 141 |
| Swivel Pad Feet (SPF) | 140 |
| Swivel Pads, Gripper | 145 |
| Swivel Screw Bodies | 70 |
| Swivel Screw Clamps (SSC, SSCS) | 55, 69-70 |
| Swivel Screw Feet | 71 |
| Swivel Screws, Gripper | 145 |
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