AVK Fasteners - A-S Series Stud Insert

PROTRUDING STUD allows component parts to be located on the stud until final assembly is accomplished with a mating nut.
EXCEPTIONAL TORQUE STRENGTH is achieved as the stud’s knurled body expands FILLING THE HOLE.
QUALITY INSTALLATIONS even in variable thickness materials are assured by AVK’s spin/spin ARO Pneumatic Tools or AVK’s SPP™ Pneumatic/Hydraulic Tools.

ELIMINATE PAINT MASKING procedures as required with weld or clinch studs. The A-S Series Stud can be installed after painting.
SUPERIOR CORROSION RESISTANCE is provided by our standard zinc/yellow dichromate finish (96 hrs. salt spray to white corrosion). Alternative finishes are available.
AVAILABLE in Steel 1010/1008 shell - Steel 1038 threaded stud.

SPINWALL TECHNOLOGY™

HOW HOLE FILL WORKS FOR YOU

As the A-S Series™ is installed, the knurled body expands 360° FILLING THE HOLE. This feature provides exceptional torque strength and vibration resistance.

The installation tool then continues to install the stud forming a backside flange even in variable thickness material — WITHOUT ADJUSTMENT.

Sealed Head

A PVC foam seal is bonded to the underside of the head and when installed provides a weathertight seal. Contact AVK for a sales drawing.

Wedge Head

The addition of wedges under the head provides even greater torque capability, especially in soft or thin materials, and is excellent for electrical grounding applications.

Hex Body

The hex shell offers exceptional resistance to spinning once installed. Also available in full body hex version.

Dog Point

An optional Dog-Point provides ease in installing mating hardware and reduces the possibility of cross-threading. AVK offers Dog-Points in a variety of configurations.

Step 1

The operator 1/4 turns the AVK fastener on to the tool mandrel and places it into the hole. Operator then presses the top trigger on the tool and the AVK part installs.

Step 2

Once hole fill is complete, the AVK fastener forms its backside flange behind the parent material and the tool stalls.

Step 3

The operator reverses the tool and proceeds to attach the mating component using the appropriate mating hardware. The entire installation sequence of the AVK fastener takes 3 seconds or less.

Notes:

The operator can install the AVK fastener into two different material thickness’. This is the key benefit of the AVK System. You are able to install our products into single, variable or multiple thickness materials without tool adjustment.

During installation the AVK fastener expands within the hole Filling The Hole. This assures excellent spin out resistance and is a feature unique to AVK fasteners.

AVK fasteners are designed to be installed right on your assembly line either before or after paint or finish is applied to your product. This saves space and improves process flow.

Sample Part Number

ASS3T-420-165-625

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Material

Finish

Type

Product
Series

Call Out	Grade
S	Steel Shell 1010/1008 Steel Stud 1038
Other Materials Available Upon Request

Call Out	Specification
3T	Zinc Trivalent per ASTM-B-633, FE/ZN .0003 (8μ) with Clear Protective Coating
4T	Yellow Zinc Trivalent per ASTM-B-633, FE/ZN .0003 (8μ) with Clear Protective Coating
9T	Tin Zinc Trivalent per ESP-P-004 .0003 (8μ) with Clear Protective Coating

Thread
Call Out

Grip
Call Out

Stud
Length
Call Out

Call Out	Type
blank	Standard
* By Special Order
S	Sealed Head
W	Wedge Head
H	Hex Body
DP	Dog Point

* Special order items are subject to minimum order requirements. Contact AVK for details.

THE A-S SERIES™ STUD - THREAD SIZES

*NOTE: The ISL Dimension shown below is the height of the installed stud at max grip. The height of the stud will increase if it is installed into thinner material. To calculate actual ISL use this formula: Max grip - actual grip + ISL = Actual ISL

Thread Specifications:
Unified - 2A/21 per ASME B1.1
Metic - 6G/21 per ASME B1.13M

Unified (Inch) and Metric Thread Sizes

Thread Size	Thread Call Out	Grip Range	Grip Call Out	Stud Lengths			Hole Size +.006 -.000	HD ±.010 ±0.25*	HH ±.003	L ±.020	D Max.	IL Max.
Thread Size	Thread Call Out	Grip Range	Grip Call Out	ISL Call Out	ISL Call Out	ISL Call Out	Hole Size +.006 -.000	HD ±.010 ±0.25*	HH ±.003	L ±.020	D Max.	IL Max.
6-32 UNC	632	.020-.080	80	.500 500	.625 625	.750 750	17/64 (.2656)	.390	.030	.485	.265	.360
6-32 UNC	632	.080-.130	130	.450 450	.575 575	.700 700	17/64 (.2656)	.390	.030	.535	.265	.360
8-32 UNC	832	.020-.080	80	.500 500	.625 625	.750 750	17/64 (.2656)	.390	.030	.485	.265	.360
8-32 UNC	832	.080-.130	130	.450 450	.575 575	.700 700	17/64 (.2656)	.390	.030	.535	.265	.360
10-24 UNC	1024	.020-.130	130	.500 500	.625 625	.750 750	19/64 (.2969)	.415	.030	.545	.296	.380
10-24 UNC	1024	.130-.225	225	.405 405	.530 530	.655 655	19/64 (.2969)	.415	.030	.655	.296	.380
10-32 UNF	1032	.020-.130	130	.500 500	.625 625	.750 750	19/64 (.2969)	.415	.030	.545	.296	.380
10-32 UNF	1032	.130-.225	225	.405 405	.530 530	.655 655	19/64 (.2969)	.415	.030	.655	.296	.380
1/4-20 UNC	420	.027-.165	165	.625 625	.8125 8125	1.000 1000	25/64 (.3906)	.500	.030	.670	.390	.465
1/4-20 UNC	420	.165-.260	260	.530 530	.7175 7175	.905 905	25/64 (.3906)	.500	.030	.770	.390	.465
5/16-18 UNC	518	.027-.150	150	.625 625	.875 875	1.125 1125	17/32 (.5312)	.685*	.035	.810	.530	.600
5/16-18 UNC	518	.150-.312	312	.463 463	.713 713	.963 963	17/32 (.5312)	.685*	.035	.925	.530	.555
3/8-16 UNC	616	.027-.150	150	.750 750	1.000 1000	1.250 1250	17/32 (.5312)	.685*	.035	.810	.530	.600
3/8-16 UNC	616	.150-.312	312	.588 588	.838 838	1.088 1088	17/32 (.5312)	.685*	.035	.925	.530	.535

Thread Size	Thread Call Out	Grip Range	Grip Call Out	Stud Lengths			Hole Size +0,15 -0,00	HD ±0,25 ±0,64*	HH ±0,08	L ±0,50	D Max.	IL Max.
Thread Size	Thread Call Out	Grip Range	Grip Call Out	ISL Call Out	ISL Call Out	ISL Call Out	Hole Size +0,15 -0,00	HD ±0,25 ±0,64*	HH ±0,08	L ±0,50	D Max.	IL Max.
M4x0,7 ISO	470	0,50-2,00	2.0	12,0 12	15,0 15	20,0 20	6,75	9,91	0,76	12,32	6,73	9,15
M4x0,7 ISO	470	2,00-3,30	3.3	10,7 10.7	13,7 13.7	18,7 18.7	6,75	9,91	0,76	13,59	6,73	9,15
M5x0,8 ISO	580	0,50-3,30	3.3	12,0 12	15,0 15	20,0 20	7,60	10,54	0,76	13,84	7,52	9,65
M5x0,8 ISO	580	3,30-5,70	5.7	9,6 9.6	12,6 12.6	17,6 17.6	7,60	10,54	0,76	16,64	7,52	9,65
M6x1,0 ISO	610	0,70-4,20	4.2	15,0 15	20,0 20	25,0 25	10,00	12,70	0,76	17,02	9,91	11,81
M6x1,0 ISO	610	4,20-6,60	6.6	12,6 12.6	17,6 17.6	22,6 22.6	10,00	12,70	0,76	19,56	9,91	11,81
M8x1,25 ISO	8125	0,70-3,8	3.8	16,0 16	22,0 22	28,0 28	13,50	17,40*	0,89	20,57	13,46	15,24
M8x1,25 ISO	8125	3,8-7,90	7.9	11,9 11,9	17,9 17,9	23,9 23,9	13,50	17,40*	0,89	23,50	13,46	14,10
M10x1,5 ISO	1015	0,70-3,8	3.8	20,0 20	25,0 25	30,0 30	13,50	17,40*	0,89	20,57	13,46	15,24
M10x1,5 ISO	1015	3,8-7,90	7.9	15,9 15,9	20,9 20,9	25,9 25,9	13,50	17,40*	0,89	23,50	13,46	13,60

NOTE 1: Grip range stated in the dimensional chart above can be achieved using pull type installation tools and may be variable based on hole size and parent material density. AVK recommends trial installations to determine actual grip range in the application.
NOTE 2: Grip ranges will be less than stated above when using torque type installation tools. Grip range will be affected by the tool RPM speed, stall torque, hole size and parent material density. AVK recommends trial installations to determine actual grip. See page 33 for torque tool selection guidelines.

A-S Series™ Stud Insert