Auto-Bulb ™ Huck’s unique bulbing fastener for automated, high-speed assemblies. Sheet line bulbing Available in stainless steel High shear strength Huck Auto-Bulb™ An easy-to-install bulbing fastening system for superior blind side strength. For use in thin materials or delicate composites, Huck Auto-Bulb™ is the perfect solution. Easy-to-install, it works by clamping the joint with a large diameter head and broad, blind side bulb, which spreads to diffuse the load over a larger area, ensuring permanent clamp. Now available in stainless steel for superior corrosion resistance. This high-reliability fastener offers an easy-to-use lead-in point in the form of a tapered, hole-seeking tip, which means fast, reliable installation. Because of its high pull-out strength, Auto-Bulb is an ideal choice for use within thin materials, and within oversized, misaligned, or slotted holes. Unlike other bulbing blind fasteners, Auto-Bulb’s uniquely engineered bulbing system creates superior blind side bearing strength with the bulb always forming on the sheet line. Its positive mechanical pin retention ensures structural integrity. Sheet-line bulb comparison Even in minimum-grip applications, Huck fasteners outperform the competition. They’re engineered to form a bulb directly on the sheet line, precisely where it’s needed, to prevent pull-through. The Competition Bulb forms irregularly above sheet line resulting in lower installed values. 2 Auto-Bulb™ Bulb forms directly on sheet line. Auto-Bulb Installation Sequence Auto-Bulb’s tapered lead-in point means fast, easy installation, every time. Insert the fastener into the hole and slip the installation tool over the pintail. Press the trigger to initiate pulling action. As the tool pulls on the pintail, the solid pin head captures the end of the sleeve and acts to initiate bulb formation and draws the work pieces together. Continued pulling on the pintail expands the bulb to maximum allowable diameter. A spline feature on the pin comes into contact with a step on the sleeve creating an interference lock between the pin and sleeve and the pin breaks. The pin will break close to flush in minimum grip and below flush as the grip increases. Secure, Fast Installation 1. T apered hole-seeking tip for quick and easy installation 2. B ulb always forms on the sheet line for superior blind side strength 3. P ositive mechanical pin retention ensures structural integrity 4. Undercut fillet allows seating in burred holes Auto-Bulb™ Benefits ■ Unmatched installation speed ■ Corrosion resistance (400 stainless steel) ■ Superior blind side strength ■ High pull-out strength in thin materials ■ Aesthetic blind side appearance ■ ■ Minimal blind side protrusion prior to installation Vibration resistance 3 Data and dimensions Head style options Protruding Head Countersunk Oval Head Protruding Head Dimensions Diameter 6 (3/16") Steel Stainless Grip Range Grip Range (Metric) Hole Size A Max B Nom Broch C Max Broch D Max ABP-R6-M2 ABP-R6-M3 ABP-R6-M4 ABP-R6-M5 ABP-R6-M6 ABP-R6-M7 ABP-R6-M8 ABP-R6-M9 - .075 - .110 .086 - .150 .126 - .189 .165 - .228 .205 - .268 .244 - .307 .283 - .347 .323 - .386 1.9 - 2.8 2.2 - 3.8 3.2 - 4.8 4.2 - 5.8 5.2 - 6.8 6.2 - 7.8 7.2 - 8.8 8.2 - 9.8 .191 - .201 .191 - .201 .191 - .201 .191 - .201 .191 - .201 .191 - .201 .191 - .201 .191 - .201 0.190 0.190 0.190 0.190 0.190 0.190 0.190 0.190 0.375 0.375 0.375 0.375 0.375 0.375 0.375 0.375 0.101 0.101 0.101 0.101 0.101 0.101 0.101 0.101 0.471 0.510 0.550 0.589 0.629 0.668 0.708 0.747 ABP-R6-M10 ABP-R6-M11 ABP-R6-M12 - .362 - .425 .402 - .465 .441 - .502 .481 - .544 .520 - .583 9.2 - 10.8 10.2 - 11.8 11.2 - 12.8 12.2 - 13.8 13.2 - 14.8 .191 - .201 .191 - .201 .191 - .201 .191 - .201 .191 - .201 0.190 0.190 0.190 0.190 0.190 0.375 0.375 0.375 0.375 0.375 0.101 0.101 0.101 0.101 0.101 0.787 0.826 0.866 0.905 0.945 ABP-R8-M2 ABP-4U8-M2 .560 - .623 .599 - .662 .639 - .702 .678 - .741 .060 - .138 14.2 - 15.8 15.2 - 16.8 16.2 - 17.8 17.2 - 18.8 1.5 - 3.5 .191 - .201 .191 - .201 .191 - .201 .191 - .201 .261 - .272 0.190 0.190 0.190 0.190 0.260 0.375 0.375 0.375 0.375 0.512 0.101 0.101 0.101 0.101 0.130 0.984 1.024 1.063 1.103 0.622 0.673 ABP-R6-M13 ABP-R6-M14 ABP-R6-M15 ABP-R6-M16 ABP-R6-M17 ABP-R6-M18 8 (1/4") ABP-R8-M3 ABP-4U8-M3 .110 - .189 2.8 - 4.8 .261 - .272 0.260 0.512 0.130 ABP-R8-M4 ABP-4U8-M4 .150 - .229 3.8 - 5.8 .261 - .272 0.260 0.512 0.130 0.713 ABP-R8-M5 ABP-4U8-M5 .189 - .268 4.8 - 6.8 .261 - .272 0.260 0.512 0.130 0.752 ABP-R8-M6 ABP-4U8-M6 .229 - .308 5.8 - 7.8 .261 - .272 0.260 0.512 0.130 0.792 ABP-R8-M7 ABP-4U8-M7 .268 - .346 6.8 - 8.8 .261 - .272 0.260 0.512 0.130 0.831 0.871 ABP-R8-M8 ABP-4U8-M8 .308 - .387 7.8 - 9.8 .261 - .272 0.260 0.512 0.130 ABP-R8-M9 ABP-4U8-M9 .346 - .425 8.8 - 10.8 .261 - .272 0.260 0.512 0.130 0.910 ABP-R8-M10 ABP-4U8-M10 .387 - .466 9.8 - 11.8 .261 - .272 0.260 0.512 0.130 0.950 ABP-R8-M11 - ABP-4U8-M11 .425 - .504 10.8 - 12.8 .261 - .272 0.260 0.512 0.130 0.988 ABP-4U8-M12 .466 - .545 11.8 - 13.8 .261 - .272 0.260 0.512 0.130 1.029 - ABP-4U8-M13 .504 - .583 12.8 - 14.8 .261 - .272 0.260 0.512 0.130 1.068 - ABP-4U8-M16 .622 - .701 15.8 - 17.8 .261 - .272 0.260 0.512 0.130 1.186 ABP-R8-M19 ABP-U8-M19 .741 - .820 18.8 - 20.8 .261 - .272 0.260 0.512 0.130 1.305 Countersunk Oval Head Dimensions 4 Diameter Steel Stainless Grip Range Grip Range (Metric) Hole Size A Max B Nom Broch C Max Broch D Max 12 (3/8") ABV-R12-6 ABV-R12-8 ABV-R12-10 ABV-R12-10X ABV-R12-12 ABV-R12-14 - .313 - .437 .438 - .562 .563 - .687 .530 - .655 .688 - .812 .813 - .937 8.0 - 11.1 11.1 - 14.3 14.3 - 17.4 13.5 - 16.6 17.5 - 20.6 20.7 - 23.8 .392 - .408 .392 - .408 .392 - .408 .392 - .408 .392 - .408 .392 - .408 0.393 0.393 0.393 0.393 0.393 0.393 0.572 0.572 0.572 0.572 0.572 0.572 0.175 0.175 0.175 0.175 0.175 0.175 1.110 1.235 1.360 1.350 1.485 1.610 Typical Installed Values in Nominal Grip Material Diameter Shear Min Steel 400 Series Stainless Tensile Typical Min Pin Retention Typical Min Typical 300 *6 (3/16") 1400 1450 875 1100 150 8 (1/4") 2600 3400 1600 2100 300 550 12 (3/8") 6000 7800 4000 4300 600 1200 *6 (3/16") 1400 1450 875 1100 150 300 8 (1/4") 2600 3400 1600 2100 300 600 * Special orders only – Minimum quantities apply Undercut fillet allows seating in burred holes Pin remains in shear plane for superior strength Unlike competitive fasteners which use a thinner material to facilitate the bulb, Auto-Bulb maintains a thicker sleeve wall – note the consistent width – to help ensure the structural strength of the joint. Aesthetic blind side appearance 5 Huck Auto-Bulb™ Installation Tooling Installation Tools Tool Model Size 3/16" Nose Assembly Pneudraulic Tools Hydraulic Tools 255/256 2015 2022 2024 2025 AK175-I* 2480 2580 99-3327 Included 99-3303 99-3303 99-3303 120982 99-3303 99-3327 99-3487* 99-3487* 99-3487* 99-3305 99-3305 99-3305 3/16" & 1/4" 1/4" 99-3328 3/8" 99-3318 Included* 99-3487 202142 99-3305 99-3328 99-3318 * Not for high volume installation AK175-I Pneudraulic Riveter Kit Model 2480 Model 2025 Tooling Weight and Dimensions Model Type Weight Length Height Width 255 pneudraulic 8.8 lbs 7.1" 14.9" 4.6" 256 pneudraulic 11.1 lbs 7.8" 14.9" 6.1" 2015 pneudraulic 4.9 lbs 10.6" 12" 3.5" 2022 pneudraulic 5.4 lbs 9.2" 12.5" 4.4 2024* pneudraulic 5.75 lbs 8.9" 12.6" 4.4" 2025 pneudraulic 5.75 lbs 8.4" 12.5" 4.4" AK175-I** pneudralic 28 oz. 7.2" 6" 1" 2480 hydraulic 2.2 lbs 8.6" 6.5" 1.9" 2580 hydraulic 6.6 lbs 8.4" 6.5" 2.2" * Recommended for high volume production. ** Not recommended for high volume production 6 Ordering Information Follow the form below to construct a part number for ordering Huck Auto-Bulb blind fasteners. Refer to the Grip Data chart for grip numbers. Ordering Information AB (HEAD STYLE) - (MATERIAL) (DIAMETER) - (GRIP NUMBER) Example: ABP-R8-M4 is a Protruding Head Auto-Bulb, Steel, 1/4" Diameter, M4 Grip. Head Style Code Protruding P Countersunk Oval Head V Material Code Diameter Code Steel R 3/16" 6 400 Series Stainless Steel 4U 1/4" 8 3/8” 12 Materials and Finishes Material Sleeve Pin Sleeve Finish Steel Low Carbon Steel Medium Carbon Steel Zinc Plated Clear Chromate Zinc Plated Clear Chromate Passivated/Clear Sealer Zinc Plated Clear Chromate/ Clear Sealer 400 Series Stainless Steel 400 Series 400 Series Pin Finish 7 Alcoa Fastening Systems & Rings TM For more than 120 years, the name Alcoa has been recognized worldwide as a strong leader in product quality and customer support. These strengths are found in every product manufactured for Alcoa Fastening Systems & Rings, offering the greatest breadth and depth of fastening system solutions in the industry. Alcoa Fastening Systems & Rings (AFSR) maintains company offices in the United States and in many other countries. AFSR fastener distributors are also located in many of the world’s industrial centers, where they provide a ready source of AFSR fasteners, installation tools, tool parts, and application assistance. Americas Industrial Fasteners Division Group Headquarters 8001 Imperial Drive Waco, TX 76712, USA P.O. Box 8117 Waco, TX 76714-8117, USA Tel: 800 388 4825 Fax: 800 798 4825 Fasteners Division 1 Corporate Drive Kingston, NY 12401, USA Tel: 800 278 4825 Fax: 845 334 7333 Industrial Distribution Group 1925 North MacArthur Drive Tracy, CA 95376, USA Tel: 800 826 2884 Fax: 800 573 2645 International Locations Industrial Distribution Group 14300 Clay Terrace Blvd. Suite 250 Carmel, IN 46032, USA Tel: 800 826 2884 Fax: 800 573 2645 Industrial Fasteners Division Avenida Parque Lira 79-402 Tacubaya Mexico C P 11850 Tel: +52 55 5515 1776 Fax: +52 55 5277 7564 Industrial Fasteners Division Av. Nações Unidas, 12.901 Torre Oeste, 3º andar São Paulo – SP – Brasil 04578-000 Tel: 0800 015 9888 Fax: +55 11 5509 0200 Industrial Fasteners Division Unit no. 28, Chowringhee Court 55/1, Chowringhee Road Kolkata – 700071 India Tel: +91 33 4069 9170/80 Fax: +91 33 4069 9184 Industrial Fasteners Division Alcoa Japan Ltd. #1013 NBF Hibiya Bldg. Uchisaiwai-cho, Chiyoda-ku Tokyo 100-1011 Japan Tel: +81 3 3539 6577 Fax: +81 3 3539 6585 Industrial Fasteners Division 1508 Centre Road Clayton, Victoria, 3168 Australia Tel: +61 3 8545 3333 Fax: +61 3 8545 3390 Fasteners Division 58 Yinsheng Road, Shengpu Suzhou Industrial Park Suzhou Jiangsu 215126 China Tel: 0512 62823800-8888 Fax: 0512 62863810 AFSHuck.net Youtube.com/AFSIndustrial The information contained in this publication is only for general guidance, and is not intended to create any warranty, express, implied, or statutory; all warranties are contained only in AFSR’s written quotations, acknowledgments, and/or purchase orders. It is recommended that the user secure specific, up-to-date data and information regarding each application and/or use of such products. © 2015 Alcoa Fastening Systems & Rings. All rights reserved. AFS5619 1115 1M Industrial Fasteners Division Unit C, Stafford Park 7 Telford, Shropshire TF3, 3BQ United Kingdom Tel: +44 1952 2900 11 Fax: +44 1952 2904 59 Fasteners Division St Cosme Operations 9 rue de Cressonnieres 72110 Saint Cosme en Varais France Tel: +33 0 2.43.31.41.00 Fax: +33 0 2.43.31.41.41 Fasteners Division Kelkheim Operations Industriestr. 6 65779 Kelkheim Germany Tel: +49 [0] 6195 8050 Fax: +49 [0] 6195 2001