V-COIL thread inserts for BSW, Whitworth thread
Whitworth is the oldest standardised thread of all and still turns up on British machines, classic vehicles and older installations. The flank angle is 55° instead of the 60° of the metric thread, and the crests are rounded. A thread insert restores a stripped thread and can give it a load capacity above that of the original. The stainless steel wire coil is screwed into the hole after it has been drilled out and re-tapped with the STI tool.
VÖLKEL offers 120 versions, from BSW 1/8 x 40 to BSW 1" x 8.
120 products found
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All sizes at a glance
120 articles in 2 series. The article number links straight to the tool.
V-COIL Wire thread inserts Refill pack Free running type S
| Threadnominal size | Tapping drillØ in mm | 1.0 D | 1.5 D | 2.0 D | 2.5 D | 3.0 D |
|---|---|---|---|---|---|---|
| BSW 1/8 x 40 | 3.4 | 4424110 pcs. | 4434110 pcs. | 4444110 pcs. | 4454110 pcs. | 4464110 pcs. |
| BSW 3/16 x 24 | 5.1 | 4424210 pcs. | 4434210 pcs. | 4444210 pcs. | 4454210 pcs. | 4464210 pcs. |
| BSW 1/4 x 20 | 6.7 | 4424310 pcs. | 4434310 pcs. | 4444310 pcs. | 4454310 pcs. | 4464310 pcs. |
| BSW 5/16 x 18 | 8.3 | 4424410 pcs. | 4434410 pcs. | 4444410 pcs. | 4454410 pcs. | 4464410 pcs. |
| BSW 3/8 x 16 | 9.9 | 442455 pcs. | 443455 pcs. | 444455 pcs. | 445455 pcs. | 446455 pcs. |
| BSW 7/16 x 14 | 11.6 | 442465 pcs. | 443465 pcs. | 444465 pcs. | 445465 pcs. | 446465 pcs. |
| BSW 1/2 x 12 | 13 | 442475 pcs. | 443475 pcs. | 444475 pcs. | 445475 pcs. | 446475 pcs. |
| BSW 9/16 x 12 | 14.8 | 442485 pcs. | 443485 pcs. | 444485 pcs. | 445485 pcs. | 446485 pcs. |
| BSW 5/8 x 11 | 16.7 | 442495 pcs. | 443495 pcs. | 444495 pcs. | 445495 pcs. | 446495 pcs. |
| BSW 3/4 x 10 | 20 | 442515 pcs. | 443515 pcs. | 444515 pcs. | 445515 pcs. | 446515 pcs. |
| BSW 7/8 x 9 | 23 | 442535 pcs. | 443535 pcs. | 444535 pcs. | 445535 pcs. | 446535 pcs. |
| BSW 1" x 8 | 26.5 | 442555 pcs. | 443555 pcs. | 444555 pcs. | 445555 pcs. | 446555 pcs. |
V-COIL Wire thread insert Free running type S
| Threadnominal size | Tapping drillØ in mm | 1.0 D | 1.5 D | 2.0 D | 2.5 D | 3.0 D |
|---|---|---|---|---|---|---|
| BSW 1/8 x 40 | 3.4 | 08241100 pcs. | 08341100 pcs. | 08441100 pcs. | 08541100 pcs. | 08641100 pcs. |
| BSW 3/16 x 24 | 5.1 | 08242100 pcs. | 08342100 pcs. | 08442100 pcs. | 08542100 pcs. | 08642100 pcs. |
| BSW 1/4 x 20 | 6.7 | 08243100 pcs. | 08343100 pcs. | 08443100 pcs. | 08543100 pcs. | 08643100 pcs. |
| BSW 5/16 x 18 | 8.3 | 08244100 pcs. | 08344100 pcs. | 08444100 pcs. | 08544100 pcs. | 08644100 pcs. |
| BSW 3/8 x 16 | 9.9 | 08245100 pcs. | 08345100 pcs. | 08445100 pcs. | 08545100 pcs. | 08645100 pcs. |
| BSW 7/16 x 14 | 11.6 | 08246100 pcs. | 08346100 pcs. | 08446100 pcs. | 08546100 pcs. | 08646100 pcs. |
| BSW 1/2 x 12 | 13 | 08247100 pcs. | 08347100 pcs. | 08447100 pcs. | 08547100 pcs. | 08647100 pcs. |
| BSW 9/16 x 12 | 14.8 | 0824850 pcs. | 0834850 pcs. | 0844850 pcs. | 0854850 pcs. | 0864850 pcs. |
| BSW 5/8 x 11 | 16.7 | 0824950 pcs. | 0834950 pcs. | 0844950 pcs. | 0854950 pcs. | 0864950 pcs. |
| BSW 3/4 x 10 | 20 | 0825125 pcs. | 0835125 pcs. | 0845125 pcs. | 0855125 pcs. | 0865125 pcs. |
| BSW 7/8 x 9 | 23 | 0825310 pcs. | 0835310 pcs. | 0845310 pcs. | 0855310 pcs. | 0865310 pcs. |
| BSW 1" x 8 | 26.5 | 0825510 pcs. | 0835510 pcs. | 0845510 pcs. | 0855510 pcs. | 0865510 pcs. |
Tapping drill: drill diameter recommended by VÖLKEL (Technical Information “Tapping drill sizes V-COIL”).
