HuckLok Blind Rivets ® Double-locking, wide-grip fasteners for superior strength in a broad variety of applications 1 HuckLok ® A structural bulbing fastener ideal for joining a broad range of materials with variation of grip thicknesses, giving it versatility in a host of applications. Featuring a wide grip range and unique double-locking action, the HuckLok® structural blind rivet combines high shear strength and high pull-up force. Its double-locking action consistently secures the assembly from both sides, resulting in maximum hold and joint integrity. Its large, blind-side footprint prevents pull-through, even when joining a wide range of materials with varying grip thicknesses. In addition, HuckLok’s® positive mechanical core pin retention design ensures structural integrity and long joint life. Its breakaway ring design lets the shear ring settle into the appropriate catch groove, keeping pressure on the blindside and securing a consistent clamp throughout the entire wide grip range. Designed to add efficiency to a wide range of joining applications, HuckLok blind rivets are easy to install in seconds. A quick visual review is all that is necessary to confirm the accuracy of the installation, since the installed HuckLok’s core pin being flush on the head of the 2 sleeve is proof of the success of the process. Installation Sequence 1 2 Insert the HuckLok 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 shear ring pushes the rivet sleeve outward, forming a bulb that compresses against and tightens the application. 3 During bulb formation, the shear ring forms a support ring from the rivet sleeve by creating a build-up of material above the ring. 4 5 (Min Grip) The shear ring expands the sleeve to its maximum capacity then breaks free as it meets the sheetline. It is then pressed onto the annular catch grooves as the pulling action continues. The internal rivet shoulder engages the lock groove on the pin and forms an internal lock. The pintail then breaks off, completeing the installation. (Max Grip) Shown in maximum grip, the shear ring expands the sleeve to its maximum capacity then breaks free as it meets the sheetline. Double locking occurs as the shear ring moves up the increased diameter annular rings upon completion of the pulling sequence. Secure, fast installation Breaking flush throughout its grip range, the HuckLok blind rivet lets the worker verify installation accuracy at a glance and eliminates costly cosmetic finishing The HuckLok’s wide footprint provides a broad blind-side bearing surface that resists pull-through Undercut fillet allows seating in burred holes Solid pin provides exceptionally high strength in the shear plane Lock groove on pin engages shoulder on rivet head, while the support ring “double locks” the pin within the bulb 3 Data and Dimensions Head style options Fastener dimensions Diameter 6 (3/16") 8 (1/4") Part Number Protruding Truss Grip Range (in) Grip Range (mm) Hole Size A Nom HKLP-R6-5 - .062 - .312 1.6 - 7.9 .191 - .201 HKLP-R6-7 - .187 - .437 4.7 - 11.1 B Max Protruding Truss C Max D Max E Max F Min 0.187 0.395 - 0.101 0.458 0.8555 0.988 .191 - .201 0.187 0.395 - 0.101 0.583 0.9805 0.978 HKLP-R8-6 HKLT-R8-6 .100 - .375 2.5 - 9.5 .261 - .272 0.253 0.530 0.592 0.122 0.560 1.019 1.082 HKLP-R8-6X HKLT-R8-6X .080 - .375 2.0 - 9.5 .261 - .272 0.253 0.530 0.592 0.122 0.560 1.019 1.082 HKLP-R8-X6 - .180 - .375 4.6 - 9.5 .261 - .272 0.253 0.530 - 0.122 0.560 1.019 1.102 HKLP-R8-7 HKLT-R8-7 .187 - .437 4.7 - 11.1 .261 - .272 0.253 0.530 0.592 0.122 0.622 1.081 1.065 HKLP-R8-10 HKLT-R8-10 .375 - .625 9.5 - 15.9 .261 - .272 0.253 0.530 0.592 0.122 0.810 1.269 1.065 HKLP-R8-12 HKLT-R8-12 .500 - .750 12.7 - 19.1 .261 - .272 0.253 0.530 0.592 0.122 0.934 1.393 1.066 HKLP-R8-14 HKLT-R8-14 .625 - .875 15.9 - 22.2 .261 - .272 0.253 0.530 0.592 0.122 1.060 1.519 1.065 HKLP-R8-18 HKLT-R8-18 .875 - 1.125 22.2 - 28.6 .261 - .272 0.253 0.530 0.592 0.122 1.310 1.769 1.065 HKLP-R8-20 HKLT-R8-20 1.000 - 1.250 25.4 - 31.8 .261 - .272 0.253 0.530 0.592 0.122 1.435 1.894 1.065 Installed values (Minimum) Shear Tensile Part Number Min Typ Min Typ Min Typ 6 (3/16") HKLP All Grips 1900 2500 1000 1300 150 450 8 (1/4") HKLP/HKLT All Grips 3500 3800 1900 2200 300 650 Lock groove on pin engages shoulder on rivet head, while the support ring ”double locks” the pin within the bulb. 4 Retention Diam. Materials and Finishes Material Sleeve Pin Sleeve Finish Pin Finish Steel Low Carbon Steel Medium Carbon Steel Zinc Plate with Clear Gold Dye Optional Zinc Plate with Clear Gold Dye Optional Ordering Information HKL(HEAD STYLE) – (MATERIAL) (DIAMETER) — (GRIP NUMBER) Example: HKLP-R6-5 is a Protruding Head HuckLok, Steel, 3/16" Diameter, 5/16" Grip Head Style Prefix Material Code Diameter Code Protruding Head P Steel R 3/16" 6 Truss Head T - - 1/4" 8 Installation Tools Installation Tools Pneudraulic Tools Tool Model Nose Assembly Hydraulic Tools Size 245/255 246/256 2015 2022 2024* 2025 AK175-I** 2480 2580 3/16" 99-3327 99-3327 Included 99-3303 99-3303 99-3303 Included 99-3303 99-3327 3/16" & 1/4" - - - - 99-3487** 99-3487** - - - 1/4" 99-3328 99-3328 - - 99-3305 99-3305 - 99-3305 99-3328 * Recommended ** Not recommended for high volume production 5 HuckLok Installation Tooling ® Tooling weight and dimensions Model Type Weight Length Height Width 245 pneudraulic 8.8 lbs 8" 15.1" 4.7" 246 pneudraulic 11.1 lbs 8.7" 15.1" 6.3" 255 pneudraulic 8.8 lbs 7.1" 14.9" 4.9" 256 pneudraulic 11.1 lbs 7.9" 14.9" 6.3" 2015 pneudraulic 4.9 lbs 10.6" 12" 3.5" 2022 pneudraulic 5.4 lbs 8.6" 12.6" 4.4" 2024* pneudraulic 5.75 lbs 8.9" 12.6" 4.4" 2025 pneudraulic 5.8 lbs 8.5" 12.7" 4.4" AK175-I** pneudraulic 28 oz. 7.2" 6" 1" 2480 hydraulic 2.2 lbs 8.2" 6.6" 1.9" 2580 hydraulic 6.6 lbs 8.5" 7.3" 2.2" * Recommended ** Not recommended for high volume production 6 Huck Pneudraulic Tooling Huck Pneudraulic Tooling 245 The 245 is sized for high-speed production applications, up to 20 fastener installations per minute. This tool provides optimum stroke for one-cycle installations, and features an eccentric pull piston for limited clearance applications. Chrome-plated piston rods in the 245 extend the life of the seals. 2024 Designed for production volume fastening, the 2024 offers a number of outstanding features, including an ergonomically designed handle, plated piston rods and an efficient in-line piston. An extended piston version (2024L) is available and an optional vacuum assist pintail collection system (2024V) can be added. 246 The 246 production tool features optimum stroke for one-cycle installation and has an eccentric pull piston for limited clearance applications. The Model 246 has chrome plated piston rods to extend the life of the seals. 2025 With an ergonomically designed handle, plated piston rods and an efficient in-line piston, the 2025 tool is ideal for high-volume production fastening. An extended piston version (2025L) is available and an optional vacuum assist pintail collection system (2025V) can also be added. 255 The Model 255 tool is sized for high-speed production applications, up to 20 fastener installations per minute. This tool can install fasteners up to 3/8” steel C6L HuckBolts, with optimum stroke for one-cycle installations. A versatile tool, the Model 255 features a concentric (inline) pull piston and new front gland design, allowing for easy piston removal. Plated piston rods in the Model 255 extend the life of the seals. The 255 is factory-tested for 2000 cycles, ensuring a high level of reliability. Despite its outstanding production capacity, the Model 255 weighs only 8.80 pounds. Huck AK-175 Built for maintenance and repair applications in the shop or in the field, the Huck AK-175 riveter is compact and lightweight at only 26 oz. Despite its light weight, it develops 3,500 pounds of pulling force. Highly versatile, the AK-175 features a unique jaw system allowing setting of rivets from 1/8" through 1/4" using changeable nosepieces. Huck Hydraulic Tooling 256 Designed for quick installation of fasteners, the 256 tool features optimum stroke for one-cycle fastener installation, and minimal moving parts. Comes with standard inline and offset nose assemblies, ranging from 4mm to 10mm. 2015 The Model 2015 is a lightweight, high-speed tool that is well-suited for both production and maintenance/ repair applications where 1/4", and smaller, diameter blind fasteners are used. The 2015 features an in-line piston for one-stroke installations of up to 35 cycles per minute. Operator fatigue is minimized through an ergonomically designed handle and the tool’s light weight (4.80 pounds). Anvil inserts for nail-type rivets can be easily changed out on the Model 2015 to accommodate various sizes. The tool’s nose diameter of .78” makes it ideal for close clearance applications. 2480 The Model 2480 is a very lightweight tool which provides for the high-speed installation of a wide range of HuckBolt and Huck blind bolt fasteners. The tool has only one moving part, resulting in outstanding reliability and minimal maintenance. The tight centerline-to-edge measurement of the Model 2480 and its light weight (2.21 pounds) allow for its use in limited clearance areas. 2580 The Model 2580 is a lightweight tool (only 6.58 pounds) designed for use in a wide range of high-speed production applications. With only one moving part, the tool provides for increased reliability and requires minimal maintenance. An offset piston design allows the Model 2580 to easily fit in limited clearance applications. 2022 The Model 2022 is a lightweight, high-speed tool that is well-suited for both production and maintenance/ repair applications where 1/4” and smaller diameter (standard and extended grip) blind fasteners are used. The 2022 features an in-line long stroke piston for production rates of up to 30 installations per minute. The 2022’s ergonomically designed handle and light weight (5.4 pounds) combine to minimize operator fatigue. NOTE: For additional tool details, refer to the specific fastener brochure or visit AFShuck.net. 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: 209 839 3000 Fax: 209 839 3022 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 AFSRHuck.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. AFS6059 0715 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