A-T Series

A-T Series Threaded Insert

The A-T Series Insert is unique in that it can be installed into most any material above .030/,76 mm in thickness. As the A-T Series is installed, the threaded portion is completely swaged 360° into the sleeve portion and the hole. This permits the A-T Series to be used with Grade 8/Metric 12.9 mating screws.

The A-T Series Insert is installed using lightweight, handheld pneumatic ARO tools that can be located at any position in your product's assembly sequence. The A-T Series Insert can be installed either prior to or after finish.

A-T Series A-T Series

A-T Series Diagram
Thread
Size
Thread
Call
Out
HD
±.005
L
±.015
D
MAX.
IL
MAX.
LB
MAX.
ILB
MAX.
IATD**
MAX.
Hole Depth
MIN.
4-40 UNC 440 .211 .370 .1875 .205 .660 .495 .395 .400
6-32 UNC 632 .240 .370 .2185 .205 .675 .505 .410 .400
8-32 UNC 832 .269 .370 .2495 .205 .675 .505 .410 .400
10-24 UNC 1024 .306 .370 .2805 .205 .685 .520 .385 .400
10-32 UNF 1032 .306 .370 .2805 .205 .685 .520 .385 .400
1/4-20 UNC 420 .400 .515 .3745 .275 1.005 .760 .615 .540
5/16-18 UNC 518 .528 .615 .4995 .325 1.065 .770 .630 .640
3/8-16 UNC 616 .588 .745 .5615 .390 1.450 1.095 .890 .770
1/2-13 UNC 813 .800 .935 .7485 .485 NA NA NA .960

** Dimensions in minimum grip condition. Additional UNF thread sizes available. Contact AVK for details.

Thread
Size
Thread
Call
Out
HD
±0,13
L
±0,38
D
MAX.
IL
MAX.
LB
±0,38
ILB
MAX.
IATD**
MAX.
Hole Depth
MIN.
M3x0,5 ISO 350 5,36 9,40 4,76 5,21 16,77 12,57 10,03 10,16
M4x0,7 ISO 470 6,83 9,40 6,34 5,21 17,15 12,83 10,41 10,16
M5x0,8 ISO 580 7,77 9,40 7,12 5,21 17,40 13,21 9,78 10,16
M6x1,0 ISO 610 10,16 13,08 9,51 6,99 25,53 19,30 15,62 13,72
M8x1,25 ISO 8125 13,41 15,62 12,69 8,26 27,05 19,56 16,00 16,26
M10x1,5 ISO 1015 14,94 18,92 14,26 9,91 36,83 27,81 22,61 19,56
M12x1,75 ISO 12175 20,32 23,75 19,01 12,32 NA NA NA 24,38

** Dimensions in minimum grip condition.



HOLE SIZE / MATERIAL THICKNESS
Thread
Size
.030-.090 Mat.THICKNESS
Drill Size
Decimal .091-.124 MAT.THICKNESS
Drill Size
Decimal .125-.186 MAT.THICKNESS
Drill Size
Decimal .187-OVER MAT.THICKNESS
Drill Size
Decimal
4-40 UNC 3/16 .1875 #10 .1935 #10 .1935 #9 .1960
6-32 UNC 7/32 .2188 #2 .2210 #1 .2280 #1 .2280
8-32 UNC 1/4 .2500 "F" .2570 17/64 .2656 17/64 .2656
10-24 UNC 9/32 .2812 "L" .2900 "L" .2900 19/64 .2969
10-32 UNF 9/32 .2812 "L" .2900 "L" .2900 19/64 .2969
1/4-20 UNC 3/8 .3750 3/8 .3750 "W" .3860 25/64 .3906
5/16-18 UNC 1/2 .5000 1/2 .5000 33/64 .5156 33/64 .5156
3/8-16 UNC 9/16 .5625 9/16 .5625 37/64 .5781 37/64 .5781
1/2-13 UNC 3/4 .7500 49/64 .7656 25/32 .7810 51/64 .7970

Thread
Size
0,76-2,29 MAT.THICKNESS
Drill Size
Decimal 2,31-3,15 MAT.THICKNESS
Drill Size
Decimal 3,17-4,72 MAT.THICKNESS
Drill Size
Decimal 4,72-OVER MAT.THICKNESS
Drill Size
Decimal
M3x0,5 ISO 4,75 .1875 4,90 .1935 4,90 .1935 4,97 .1960
M4x0,7 ISO 6,35 .2500 6,52 .2570 6,74 .2656 6,74 .2656
M5x0,8 ISO 7,14 .2812 7,36 .2900 7,36 .2900 7,54 .2969
M6x1,0 ISO 9,52 .3750 9,52 .3750 9,80 .3860 9,92 .3906
M8x1,25 ISO 12,70 .5000 12,70 .5000 13,09 .5156 13,09 .5156
M10x1,5 ISO 14,28 .5625 14,28 .5625 14,68 .5781 14,68 .5781
M12x1,75 ISO 19,05 .7500 19,44 .7656 19,83 .7810 20,24 .7970

REDUCED OVERALL LENGTH of the installed A-T Series Insert allows it to be used in limited clearance applications.

QUALITY INSTALLATIONS even in variable thickness materials are assured by our spin/spin torque stall tools.

INVENTORY REDUCTION is possible because one A-T Series Insert will work in any thickness material above .030/,76 mm.

INSTALLS INTO MOST ANY MATERIAL with a thickness over .030/,76 mm.

CAN BE USED WITH GRADE 8/METRIC CLASS 12.9 SCREWS due to the A-T Series high shear load capability.

AVAILABLE in Steel from stock. Aluminum, Brass and Series 304 Stainless Steel are available by special order. Contact AVK for details.

Various A-T Series
Design Types
AT Series

CLOSED END
Thread area is enclosed eliminating leakage past the threads from either side of the application.