single davit arm 4-bolt base

4-Bolt Base

single davit arm 4-bolt base catalog page

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Details

RTA Single Davit Arm 4-Bolt Pole Specifications

Pole

The pole shaft will be constructed of seamless extruded tube of 6063 Aluminum Alloy per the requirements of ASTM B221. The shaft assembly shall be full-length heat treated after base weld to produce a T6 temper.

Base Style

4-Bolt Cast Aluminum Base Flange of Alloy 356-T6 with Aluminum Bolt Covers (Alloy 356-F) and Stainless Steel Hex Head Attaching Screws.

 

Handhole

6″ Butt Diameter – Reinforced, 3″ x 5″ curved Cast Aluminum Frame (Alloy 356-T6) with Aluminum Door and two (2) SS Hex Head Screws. A Grounding Provision incorporating a 3/8″ diameter hole is provided opposite the Handhole.

7″+ Butt Diameters – Reinforced, 4″ x 6″ curved Cast Aluminum Frame (Alloy 356-T6) with Aluminum Door and two (2) SS Hex Head Screws. Reinforced Frame will contain a tapped 3/8″-16NC Grounding Provision.

Anchorage

Anchorage Kit will include four (4) L-shaped Steel Anchor Bolts conforming to AASHTO M314-90 Grade 55. Ten inches (10″) of threaded end will be galvanized per ASTM A153. Kits will contain four (4) Hex Nuts, four (4) Lock Washers, and four (4) Flat Washers (all components Galvanized Steel). A bolt circle template will be provided.

Base and Anchorage Details
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Vibration Damper

When determined necessary by Hapco, a Vibration Damper will be factory-installed inside the pole shaft. Customer specification of the damper is available.

Vibration Dampers
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Satin Aluminum Finish

Pole surface will contain a uniform Brushed Aluminum natural finish. Finish to be achieved utilizing specially formulated abrasives in a multi-pass, rotary sanding operation.

Powder Coat Finish

Coating material will be a thermosetting polyester AAMA 2604 Super Durable powder electrostatically applied, oven cured and bonded in a closed loop, automated system. Minimum thickness of finish will be two (2) mils. Hapco’s Powder Coat Finish Warranty on aluminum poles is five (5) years.

Finish Options
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Pole Shaft Warranty

Hapco warrants its aluminum pole assemblies for their lifetime to be free of defects in material and workmanship.

Hapco Lifetime Pole Assembly Warranty
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Specification Drawings – RTA Single Davit Arm 4-Bolt Base

Click on the Product No. to download interactive PDF specification drawing.

Pole HeightProduct No.Butt DiaWallOld Product No.
20′RTA20C6B4D14-**6″0.156”[ 4′ ] 41-031
RTA20C6B4D16-**6″0.156”[ 6′ ] 41-032
RTA20C6B4D18-**6″0.156”[ 8′ ] 41-033
RTA20D6B4D14-**6″0.188”[ 4′ ] 41-001
RTA20D6B4D16-**6″0.188”[ 6′ ] 41-002
RTA20D6B4D18-**6″0.188”[ 8′ ] 41-003
25′RTA25C6B4D14-**6″0.156”
RTA25C6B4D16-**6″0.156”
RTA25C6B4D18-**6″0.156”
RTA25C6B4D1A-**6″0.156”
RTA25D6B4D14-**6″0.188”[ 4′ ] 41-073
RTA25D6B4D16-**6″0.188”[ 6′ ] 41-074
RTA25D6B4D18-**6″0.188”[ 8′ ] 41-075
RTA25D6B4D1A-**6″0.188”[ 10′ ] 41-076
RTA25C7B4D14-**7″0.156”[ 4′ ] 41-103
RTA25C7B4D16-**7″0.156”[ 6′ ] 41-104
RTA25C7B4D18-**7″0.156”[ 8′ ] 41-105
RTA25C7B4D1A-**7″0.156”[ 10′ ] 41-106
RTA25D7B4D14-**7″0.188”[ 4′ ] 41-079
RTA25D7B4D16-**7″0.188”[ 6′ ] 41-080
RTA25D7B4D18-**7″0.188”[ 8′ ] 41-081
RTA25C8B4D1A-**8″0.156”
30′RTA30C6B4D14-**6″0.156”
RTA30C6B4D16-**6″0.156”
RTA30C6B4D18-**6″0.156”
RTA30D6B4D14-**6″0.188”
RTA30D6B4D16-**6″0.188”
RTA30D6B4D18-**6″0.188”
RTA30D6B4D1A-**6″0.188”
RTA30C7B4D14-**7″0.156”[ 4′ ] 41-145
RTA30C7B4D16-**7″0.156”[ 6′ ] 41-146
RTA30C7B4D18-**7″0.156”[ 8′ ] 41-147
RTA30C7B4D1A-**7″0.156”[ 10′ ] 41-148
RTA30D7B4D14-**7″0.188”[ 4′ ] 41-151
RTA30D7B4D16-**7″0.188”[ 6′ ] 41-152
RTA30D7B4D18-**7″0.188”[ 8′ ] 41-153
RTA30C8B4D14-**8″0.156”[ 4′ ] 41-175
RTA30C8B4D16-**8″0.156”[ 6′ ] 41-176
RTA30C8B4D18-**8″0.156”[ 8′ ] 41-177
RTA30C8B4D1A-**8″0.156”[ 10′ ] 41-178
RTA30D8B4D14-**8″0.188”[ 4′ ] 41-157
RTA30D8B4D16-**8″0.188”[ 6′ ] 41-158
RTA30D8B4D18-**8″0.188”[ 8′ ] 41-159
RTA30D8B4D1A-**8″0.188”[ 10′ ] 41-160
35′RTA35C7B4D14-**7″0.156”
RTA35C7B4D16-**7″0.156”
RTA35C7B4D18-**7″0.156”
RTA35C8B4D14-**8″0.156”[ 4′ ] 41-223
RTA35C8B4D16-**8″0.156”[ 6′ ] 41-224
RTA35C8B4D18-**8″0.156”[ 8′ ] 41-225
RTA35D8B4D14-**8″0.188”[ 4′ ] 41-229
RTA35D8B4D16-**8″0.188”[ 6′ ] 41-230
RTA35D8B4D18-**8″0.188”[ 8′ ] 41-231
RTA35D8B4D1A-**8″0.188”[ 10′ ] 41-232
RTA35E8B4D14-**8″0.219”[ 4′ ] 41-235
RTA35E8B4D16-**8″0.219”[ 6′ ] 41-236
RTA35E8B4D18-**8″0.219”[ 8′ ] 41-237
RTA35E8B4D1A-**8″0.219”[ 10′ ] 41-238
RTA35F8B4D14-**8″0.250”[ 4′ ] 41-241
RTA35F8B4D16-**8″0.250”[ 6′ ] 41-242
RTA35F8B4D18-**8″0.250”[ 8′ ] 41-243
RTA35F8B4D1A-**8″0.250”[ 10′ ] 41-244
40′RTA40C8B4D14-**8″0.156”
RTA40C8B4D16-**8″0.156”
RTA40C8B4D18-**8″0.156”
RTA40D8B4D16-**8″0.188”[ 6′ ] 41-326
RTA40D8B4D18-**8″0.188”[ 8′ ] 41-327
RTA40E8B4D14-**8″0.219”[ 4′ ] 41-331
RTA40E8B4D16-**8″0.219”[ 6′ ] 41-332
RTA40E8B4D18-**8″0.219”[ 8′ ] 41-333
RTA40F8B4D14-**8″0.250”[ 4′ ] 41-337
RTA40F8B4D16-**8″0.250”[ 6′ ] 41-338
RTA40F8B4D18-**8″0.250”[ 8′ ] 41-339
RTA40F8B4D1A-**8″0.250”[ 10′ ] 41-340
RTA40D1C4D16-**10″0.188”[ 6′ ] 41-362
RTA40D1C4D1A-**10″0.188”[ 10′ ] 41-364