Alfa Tools General Product Catalog
Solid Screw Inserts
Carbon Steel
ALFA LOK Inserts will not back out or vibrate loose Immediately on installation, micro-encapsulated adhesive begins to set, and the newly installed inserts can be fastened within minutes The adhesive continues to set overnight until completely set The adhesive seals against all liquids and gases to a pressure of 6,000 psi when fully cured and bonds to virtually all metals Easy Removal Use a standard screw and bolt extractor to back out a damaged insert and then replace it with a new insert Removal is simply a matter of overcoming the resistance to torque-out which has been produced by the threadlocking material
COARSE THREAD
INTERNAL THREAD 4-40 6-32 8-32 10-24 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 5/8-11 3/4-10 7/8-9 10-32 1/4-28 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 5/8-18 3/4-16 7/8-14 1/4-20 5/16-18 3/8-16 1/2-13 5/8-11 M6-1 0 M8-1 25 M10-1 50 M10-1 25 M12-1 75 M14-2 0 M16-2 0 1-8 1-14
EXTERNAL THREAD 10-32 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 3/4-10 7/8-9 7/8-9 1-1/4 - 7 1-3/8 - 12 1-8
TAP DRILL
TAP SIZE
MINIMUM FULL THREAD DEPTH
LENGTH
STOCK #
SIZE
250 280 290 406 437 484 515 656 656 656 687 406 437 484 515 656 656 656 687 781 484 515 656 687 781 406 484 515 515 658 687 781 781
5/32
10-32 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 3/4-10 7/8-9 7/8-9
9/32 11/32 7/16 15/32 1/2 9/16 19/32 23/32 13/16 1-1/4 1-1/8 1-3/8 7/8 15/32 1/2 9/16 19/32 23/32 3/4 3/4
S I 67501 S I 67502 S I 67503 S I 67504 S I 67505 S I 67506 S I 67507 S I 67508 S I 67509 S I 67510 S I 67511 S I 67512 S I 67513 S I 67514 S I 67515 S I 67521 S I 67522 S I 67523 S I 67524 S I 67525 S I 67526 S I 67527 S I 67528 S I 67529 S I 67530 S I 67531 S I 67533 S I 67534 S I 67535 S I 67536 S I 67537
7 F
5/16 23/64 27/64 31/64 17/32 21/32 21/32 49/64 49/64 1-7/64 1-9/32 5/16 23/64 27/64 31/64 17/32 21/32 21/32 49/64 1-7/64 1-9/32 27/64 31/64 17/32 49/46 5/16 27/64 31/64 31/64 21/32 49/64 7/8 7/8 7/8
1. Drill with standard drill
1 125
1-8
1 125 1 250
1-1/4 - 7 1-3/8 - 12
FINE THREAD
3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 3/4-10 7/8-9
3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 3/4-10 7/8-9
Solid Screw Inserts
B
3/4 3/4
13/16
1-8
1-8
7/8
2. Tap hole with standard tap
1-1/4 - 7 1-3/8 - 12
1 125 1 250
1-1/4 - 7 1-3/8 - 12
1-1/8 1-3/8
EXTRA HEAVY WALL
1/2-13 9/16-12 5/8-11 7/8-9
1/2-13 9/16-12 5/8-11 7/8-9
9/16 19/32 23/32 13/16
1-8
1-8
7/8
METRIC INSIDE – N. C. OUTSIDE
3/8-16 1/2-13 9/16-12 9/16-12 3/4-10 7/8-9
3/8-16 1/2-13 9/16-12 9/16-12 3/4-10 7/8-9
15/32 9/16 19/32 19/32
S I M67541 S I M67542 S I M67543 S I M67544 S I M67545 S I M67546 S I M67547
3. Turn ALFA LOK
home flush with bolt
3/4
13/16
1-8
7/8
1-8
7/8
SCREW INSERT KITS
KIT RANGE #10 - 1/2"
CONTENTS
STOCK #
10 10-24 10 1/4-20
10 5/16-18 10 3/8-16
6 1/2-13
S I 67555
UNC
1/2" - 1"
6 1/2 - 13 7 5/8 - 11
7 3/4 - 10
S I 67556
UNC
2 1-8
#10 - 1/2"
10 10-32 10 1/4-28
10 5/16-24 10 3/8-24
6 1/2-20
S I 67557
UNF
1/2" - 1"
6-1/2-20 7-5/8 - 18 10 M6-1 0 10 M8-1 25
7 3/4 - 16 2 1-14 10 M10-1 5 8 M12-1 75
S I 67558
UNF
M8 - M12 METRIC
S I M67559
Prepackaged kits containing a range of sizes are available.
Bulk up to 1/2", 10 per pack 9/16" to 1", 5 per pack
M6 to M12, 10 per pack
Kits 1 per pack
M14 to M16, 5 per pack
B-38
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