A-K Series

A-K Series Threaded Insert

The A-K Series Insert features a knurled body and a reduced profile head to allow for virtually flush installation. Countersink drilling or dimpling of the parent material can be eliminated. The A-K Series is designed to be used with Grade 5 or Metric Class 8.8/9.8 mating screws.

The A-K Series Insert can be installed using AVK's ARO brand pneumatic tools or AVK's SPP™ pneumatic/hydraulic tools. These tools can be located at any position on your assembly line. The A-K Series Insert can be installed either before or after finish.

A-K Series A-K Series
Open end type and closed end type
Thread
  Size
Thread
Call
Out
Grip
Range
Grip
Call Out
Hole Size
+.006
-.000
HD
+-.010
+-.025
HH
+-.003
HD
+-.010
HH
+-.002
L
+-.015
6-32 UNC 632 .020-.080 80 17/64 (.2656) .390 .030 .310 .019 .420
6-32 UNC 632 .080-.130 130 17/64 (.2656) .390 .030 .310 .019 .470
8-32 UNC 832 .020-.080 80 17/64 (.2656) .390 .030 .310 .019 .420
8-32 UNC 832 .080-.130 130 17/64 (.2656) .390 .030 .310 .019 .470
10-24 UNC 1024 .020-.130 130 19/64 (.2969) .415 .030 .340 .019 .475
10-24 UNC 1024 .130-.225 225 19/64 (.2969) .415 .030 .340 .019 .585
10-32 UNF 1032 .020-.130 130 19/64 (.2969) .415 .030 .340 .019 .475
10-32 UNF 1032 .130-.225 225 19/64 (.2969) .415 .030 .340 .019 .585
1/4-20 UNC 420 .027-.165 165 25/64 (.3906) .500 .030 .455 .022 .580
1/4-20 UNC 420 .165-.260 260 25/64 (.3906) .500 .030 .455 .022 .680
5/16-18 UNC 518 .027-.150 150 17/32 (.5312) .685 .035 .595 .022 .690
5/16-18 UNC 518 .150-.312 312 17/32 (.5312) .685 .035 .595 .022 .805
3/8-16 UNC 616 .027-.150 150 17/32 (.5312) .685 .035 .595 .022 .690
3/8-16 UNC 616 .150-.312 312 17/32 (.5312) .685 .035 .595 .022 .805
1/2-13 UNC 813 .063-.200 200 11/16 (.6875) .865 .047 ------ ------ 1.150
1/2-13 UNC 813 .200-.350 350 11/16 (.6875) .865 .047 ------ ------ 1.300
1/2-13 UNC 813 .350-.500 500 11/16 (.6875) .865 .047 ------ ------ 1.450
  D
Max.
IL
Max.
LB
+-.015
ILB
Max.
IATD
Max.
Complete Pneumatic
Pistol Tool
Part Number
Tool
RPM
Dynamic
Air Pressure
Settings
PSI
.265 .305 .740 .640 .610 AKPT30P632 3000 70-80
.265 .305 .740 .580 .670 AKPT30P632 3000 70-80
.265 .305 .740 .640 .610 AKPT30P832 3000 75-90
.265 .305 .740 .580 .670 AKPT30P832 3000 75-90
.296 .315 .990 .845 .730 AKPT15P1024 1500 60-80
.296 .315 .990 .735 .840 AKPT15P1024 1500 60-80
.296 .315 .990 .845 .730 AKPT15P1032 1500 60-80
.296 .315 .990 .735 .840 AKPT15P1032 1500 60-80
.390 .380 1.190 1.005 .895 AKPT9P420 900 70-90
.390 .380 1.190 .905 1.035 AKPT9P420 900 70-90
.530 .470 1.390 1.175 .995 AKPT6P518 600 80-110
.530 .425 1.390 1.025 1.120 AKPT6P518 600 80-110
.530 .470 1.390 1.175 .995 AKPT6P616 600 80-110
.530 .425 1.390 1.025 1.120 AKPT6P616 600 80-110
.685 .850 2.365 2.070 1.505 AKPT3P813 350 80-110
.685 .850 2.365 1.920 1.505 AKPT3P813 350 80-110
.685 .860 2.365 1.770 1.505 AKPT3P813 350 80-110
Thread
  Size
Thread
Call
Out
Grip
Range
Grip
Call Out
Hole Size
+.006
-.000
HD
+-.010
+-.025
HH
+-.003
HD
+-.010
HH
+-.002
L
+-.015
M4 x 0,7 ISO 470 0,50-.2,00 2.0 6,75 9,91 0,76 7,78 0,48 10,67
M4 x 0,7 ISO 470 2,00-3,30 3.3 6,75 9,91 0,76 7,78 0,48 11,94
M5 x 0,8 ISO 580 0,50-.3,30 3.3 7,60 10,54 0,76 8,64 0,48 12,07
M5 x 0,8 ISO 580 3,30-5,70 5.7 7,60 10,54 0,76 8,64 0,48 14,86
M6 x 1,0 ISO 610 0,70-.4,20 4.2 10,00 12,70 0,76 11,56 0,55 14,73
M6 x 1,0 ISO 610 4,20-6,60 6.6 10,00 12,70 0,76 11,56 0,55 17,27
M8 x 1,25 ISO 8125 0,70-3,80 3.8 13,50 17,40 0,89 15,11 0,55 17,53
M8 x 1,25 ISO 8125 3,80-7,90 7.9 13,50 17,40 0,89 15,11 0,55 20,45
M10 x 1,5 ISO 1015 0,70-3,80 3.8 13,50 17,40 0,89 15,11 0,55 17,53
M10 x 1,5 ISO 1015 3,80-7,90 7.9 13,50 17,40 0,89 15,11 0,55 20,45
M12 x 1,75 ISO 12175 1,60-5,10 5.1 17,45 21,97 1,19 ------ ------ 29,21
M12 x 1,75 ISO 12175 5,10-8,90 8.9 17,45 21,97 1,19 ------ ------ 33,02
M12 x 1,75 ISO 12175 8,90-12,7 12.7 17,45 21,97 1,19 ------ ------ 36,83
  D
Max.
IL
Max.
LB
+-.015
ILB
Max.
IATD
Max.
Complete Pneumatic
Pistol Tool
Part Number
Tool
RPM
Dynamic
Air Pressure
Settings
PSI
6,73 7,75 18,80 16,26 15,49 AKPT30P470 3000 4.8-5.5
6,73 7,75 18,80 14,73 17,02 AKPT30P470 3000 4.8-5.5
7,52 8,00 25,15 21,46 18,54 AKPT15P580 1500 4.1-5.5
7,52 8,00 25,15 18,67 21,34 AKPT15P580 1500 4.1-5.5
9,91 9,65 30,23 25,53 22,73 AKPT9P610 900 4.8-6.2
9,91 9,65 30,23 22,99 26,29 AKPT9P610 900 4.8-6.2
13,46 11,94 35,31 29,85 25,27 AKPT6P8125 600 5.5-7.5
13,46 10,80 35,31 26,04 28,45 AKPT6P8125 600 5.5-7.5
13,46 11,94 35,31 29,85 25,27 AKPT6P1015 600 5.5-7.5
13,46 10,80 35,31 26,04 28,45 AKPT6P1015 600 5.5-7.5
17,4 21,59 60,07 52,58 38,23 AKPT3P12175 350 5.5-7.5
17,4 21,59 60,07 48,77 38,23 AKPT3P12175 350 5.5-7.5
17,4 21,84 60,07 44,96 38,23 AKPT3P12175 350 5.5-7.5

VIRTUALLY FLUSH INSTALLATIONS are achieved without special hole preparation due to the A-K Series minimal head profile.

EXCEPTIONAL TORQUE STRENGTH is achieved as the insert’s knurled body expands FILLING THE HOLE.

QUALITY INSTALLATIONS even in variable thickness materials are assured by AVK’s spin/spin ARO pneumatic tools and our SPP™ pneumatic/hydraulic tools.

SUPERIOR THREAD STRENGTH is provided due to our internal rolled thread manufacturing process.

THREADS GAUGE before and after installation due to the increased cross-sectional thickness of the thread area. Thread dilation is prevented.

INVENTORY REDUCTION is possible because of the A-K Series’ wide grip range capacity. It is 2.5 times greater than conventional rivet nuts.

SUPERIOR CORROSION RESISTANCE is provided by our standard zinc/yellow dichromate finish (96 hrs. salt spray to white corrosion). For exceptional corrosion protection we offer a tin/zinc alloy finish.

AVAILABLE in steel from stock. Additional materials such as aluminum, brass and monel are available by special order. Contact AVK for details.

Various A-K Series
Design Types
CLOSED END
Thread area is enclosed eliminating leakage past the threads from either side of the application.