
Pan Head Cross Recess SEMS Screw with Plain and Spring Washers
Pan head, cross recess (Phillips), plain washer and spring washer held captive. M1.6 to M6, stainless steel SS 304.

Image is a rendering of this SEMS screw, made from its data sheet dimensions.
SEMS screw: plain washer and spring washer held captive under the head. M2 to M8, stainless steel SS 304.
A socket head cap SEMS screw with a plain washer and spring washer held captive under the head. The spring washer sits against the head and the plain washer outside it; both are fitted before the thread is rolled, so they cannot fall off. The screw and washers go in as one part, which saves assembly time and stops loose washers getting lost in equipment.
Made in stainless steel SS 304 (A2). Same can be manufactured in SS 316 (A4) against orders. Sizes M2 to M8.
| Brand | SGPFS |
|---|---|
| Part no. series | SGSCS034… |
| Head | Socket head cap, hexagon socket |
| Washers | Plain washer and spring washer, held captive |
| Material | Stainless steel SS 304 (A2 / 1.4301) |
| Threads | M2, M2.5, M3, M4, M5, M6, M8 (metric coarse) |
| Lengths | 5 to 100 mm |
Values in mm. dk max. head diameter, max.. k max. head height, max.. D1 max. plain washer outside diameter, max.. s max. plain washer thickness, max.. Part number: SG + SCS (type) + 034 (SS 304) + thread + X + length, for example SGSCS034M3X18 = M3 × 18 mm.
| Size | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 |
|---|---|---|---|---|---|---|---|
| Part no. series | SGSCS034M2 | SGSCS034M2.5 | SGSCS034M3 | SGSCS034M4 | SGSCS034M5 | SGSCS034M6 | SGSCS034M8 |
| Pitch | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1.0 | 1.25 |
| dk max. | 3.98 | 4.68 | 5.68 | 7.22 | 8.72 | 10.22 | 13.27 |
| dk min. | 3.62 | 4.32 | 5.32 | 6.78 | 8.28 | 9.78 | 12.73 |
| k max. | 2.00 | 2.50 | 3.00 | 4.00 | 5.00 | 6.00 | 8.00 |
| k min. | 1.86 | 2.36 | 2.86 | 3.82 | 4.82 | 5.70 | 7.64 |
| D1 max. | 5.00 | 6.00 | 7.00 | 9.00 | 10.00 | 12.00 | 16.00 |
| s max. | 0.35 | 0.55 | 0.55 | 0.90 | 1.10 | 1.80 | 1.80 |
| s min. | 0.25 | 0.45 | 0.45 | 0.70 | 0.90 | 1.40 | 1.40 |
Length L in mm, measured under the head. Each cell is the part number for that thread and length.
| Length L (mm) | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 |
|---|---|---|---|---|---|---|---|
| 5 | SGSCS034M2X5 | SGSCS034M2.5X5 | SGSCS034M3X5 | ||||
| 6 | SGSCS034M2X6 | SGSCS034M2.5X6 | SGSCS034M3X6 | SGSCS034M4X6 | |||
| 8 | SGSCS034M2X8 | SGSCS034M2.5X8 | SGSCS034M3X8 | SGSCS034M4X8 | SGSCS034M5X8 | ||
| 10 | SGSCS034M2X10 | SGSCS034M2.5X10 | SGSCS034M3X10 | SGSCS034M4X10 | SGSCS034M5X10 | SGSCS034M6X10 | |
| 12 | SGSCS034M2X12 | SGSCS034M2.5X12 | SGSCS034M3X12 | SGSCS034M4X12 | SGSCS034M5X12 | SGSCS034M6X12 | SGSCS034M8X12 |
| 14 | SGSCS034M2X14 | SGSCS034M2.5X14 | SGSCS034M3X14 | SGSCS034M4X14 | SGSCS034M5X14 | SGSCS034M6X14 | SGSCS034M8X14 |
| 16 | SGSCS034M2X16 | SGSCS034M2.5X16 | SGSCS034M3X16 | SGSCS034M4X16 | SGSCS034M5X16 | SGSCS034M6X16 | SGSCS034M8X16 |
| 18 | SGSCS034M2.5X18 | SGSCS034M3X18 | SGSCS034M4X18 | SGSCS034M5X18 | SGSCS034M6X18 | SGSCS034M8X18 | |
| 20 | SGSCS034M2.5X20 | SGSCS034M3X20 | SGSCS034M4X20 | SGSCS034M5X20 | SGSCS034M6X20 | SGSCS034M8X20 | |
| 22 | SGSCS034M2.5X22 | SGSCS034M3X22 | SGSCS034M4X22 | SGSCS034M5X22 | SGSCS034M6X22 | SGSCS034M8X22 | |
| 25 | SGSCS034M2.5X25 | SGSCS034M3X25 | SGSCS034M4X25 | SGSCS034M5X25 | SGSCS034M6X25 | SGSCS034M8X25 | |
| 30 | SGSCS034M3X30 | SGSCS034M4X30 | SGSCS034M5X30 | SGSCS034M6X30 | SGSCS034M8X30 | ||
| 35 | SGSCS034M3X35 | SGSCS034M4X35 | SGSCS034M5X35 | SGSCS034M6X35 | SGSCS034M8X35 | ||
| 40 | SGSCS034M3X40 | SGSCS034M4X40 | SGSCS034M5X40 | SGSCS034M6X40 | SGSCS034M8X40 | ||
| 45 | SGSCS034M4X45 | SGSCS034M5X45 | SGSCS034M6X45 | SGSCS034M8X45 | |||
| 50 | SGSCS034M4X50 | SGSCS034M5X50 | SGSCS034M6X50 | SGSCS034M8X50 | |||
| 55 | SGSCS034M4X55 | SGSCS034M5X55 | SGSCS034M6X55 | SGSCS034M8X55 | |||
| 60 | SGSCS034M4X60 | SGSCS034M5X60 | SGSCS034M6X60 | SGSCS034M8X60 | |||
| 65 | SGSCS034M5X65 | SGSCS034M6X65 | SGSCS034M8X65 | ||||
| 70 | SGSCS034M5X70 | SGSCS034M6X70 | SGSCS034M8X70 | ||||
| 80 | SGSCS034M5X80 | SGSCS034M6X80 | SGSCS034M8X80 | ||||
| 90 | SGSCS034M5X90 | SGSCS034M6X90 | SGSCS034M8X90 | ||||
| 100 | SGSCS034M5X100 | SGSCS034M6X100 | SGSCS034M8X100 |
SS 304 as standard; same can be manufactured in SS 316 against orders. Other lengths are made to order.
Quote the part number from the table, for example SGSCS034M3X18, and the quantity. For SS 316, add "SS 316" to your enquiry.

Pan head, cross recess (Phillips), plain washer and spring washer held captive. M1.6 to M6, stainless steel SS 304.

Pan head, cross recess (Phillips), small plain washer and spring washer held captive. M2 to M6, stainless steel SS 304.

Hexagon head with cross recess (Phillips), plain washer and spring washer held captive. M3 to M10, stainless steel SS 304.