AVK Industrial Products - Products - A-S Series™ Stud Threaded Insert


The A-S Series™ functions in the same way as the A-L Series™ but has the added feature of a protruding stud.

The A-S Series™ Stud Threaded Insert offers a unique design advantage in that once installed, a threaded stud is left protruding from the workpiece. Component parts can be located on the stud until final assembly is accomplished with a mating nut. The A-S Stud Insert is an ideal alternative to clinch or weld studs. The A-S Insert is designed to be used with Grade 5 or Metric Class 8.8/9.8 non thread locking type nuts.

The A-S Series™ Stud Threaded Insert is 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-S Stud can be installed either before or after finish.

Design Benefits
Design Types
Installation Video
Part Numbering System

The A-S Series™ Stud - Design Benefits

	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 stem.

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.

The A-S Series™ Stud - Installation Steps & Video

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Step 1
The operator 1/4 turns the AVK fastener on to the tool mandrel and places it into the hole. He 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:
In this demo video the operator is installing 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.

The A-S Series™ Stud - Various Design Types


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.

The A-S Series™ Stud - Part Numbering System

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Material

Finish

Type

Product
Series

Call Out	Grade
S	Steel Shell 1010/1008 Steel Stud 1038

Call Out	Specification
4	Steel - Zinc/Yellow Dichromate per ASTM-B-633 Type II FE/ZN .0003 (8μ) with Clear Protective Coating
* By Special Order
9	Steel - Yellow Tin Zinc per BPS-TZ-327 .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

Sample Part Number:
ASS4-610-4.2-15

* 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 can be affected by parent material density and actual hole size. AVK suggests trial installations to determine optimum grip.
NOTE 2: Additional UNF fine threads are available. Contact AVK for details.
* Dimensions in maximum grip condition.