Structural Bolting Handbook 2006

Based upon the June 30, 2004 edition of the RCSC Specification

a must for:
fabricators and erectors
ironworkers and fitters
inspectors
engineers and detailers

4" by 8" pocket-sized convenience, 108 pages

• Step-by-step instructions for performing bolt installation using the turn-of-the-nut, calibrated wrench, twist-off bolt and direct tension indicator methods
• Step-by-step pre-installation tests for each method
• Step-by-step inspection procedures for each method
• Step-by-step arbitration of disputes procedure
• AASHTO / FHWA rotational capacity test procedures
• Bolt, nut and washer product identification markings
• Manufacturer markings

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Table of Contents

Pre-Installation Verification Requirements
Turn-of-Nut Method
Calibrated Wrench Method
- Impact Wrench
- Manual Torque Wrench
- Impact Wrench - short bolts
- Manual Torque Wrench - short bolts
Twist-Off-Type Tension-Control Bolt Method
Twist-Off-Type Tension-Control Bolt Method - short bolts
Direct-Tension-Indicator Method
- dti placed under bolt head
- dti placed under nut

Determining the DTI Calibration

Table P-1. Required Minimum Bolt Pretension
Snug-Tightened Joints
Turn-of-Nut Method - turning the nut
Turn-of-Nut Method - turning the bolt head
Table T-1. Required Turns for Pretensioning for Flat Surfaces under Bolt Head and Nut
Table T-2. Required Turns for Pretensioning for Sloped Surfaces under Bolt Head or Nut
Table T-3. Required Rotation for Turn-of-Nut Method
Calibrated Wrench Method - impact wrench
Calibrated Wrench Method - manual torque wrench
Twist-Off-Type Tension-Control Bolt Method
Direct-Tension-Indicator Method - under bolt head
Direct-Tension-Indicator Method - under nut
DTI Method - installation positions
Table DTI-1. DTI Data

Snug-Tightened Joints
Common to All Pretensioning Methods
Turn-of-Nut Method
Calibrated Wrench Method
Twist-Off-Type Tension-Control Bolt Method
Direct-Tension-Indicator Method

Arbitration of Disputes

Long Bolts
Short Bolts

Joint Types
Hole-Making
Table H-1. Hole Sizes
Jobsite Storage
Lubrication of Black Fasteners
Lubrication of Galvanized Fasteners
Systematic Tightening
Requirements for Washers
Stickout
Torque
Overtightening High-Strength Bolts
Thread Stripping
Reuse of Bolts Previously Pretensioned

Long Bolts
Short Bolts

Miscellaneous Data

Bolt Calibration Devices Table SW-1. Skidmore-Wilhelm Data
Table W-1. Suggested Impact Wrenches
Table N-1. Nuts for A325, F1852 and A490 Bolts
Table N-2. Nuts for A307 Bolts
Table N-3. Nuts for A449 Bolts
Table N-4. Nuts for A354 Bolts
Bolt Head Markings - A325, A490, A449
Bolt Head Markings - A307, A354
Table D-1. Dimensions of Heavy Hex Bolts
Table D-2. Dimensions of F1852 Twist-Off-Type Tension-Control Bolts
Table D-3 Dimensions of Hex Bolts
Bolt Manufacturers Marks
Nut Markings - A563, A194
Table D-4. Dimensions of Heavy Hex Nuts
Table D-5. Dimensions of F436 Washers
Table D-6. Dimensions of F959
Direct-Tension-Indicators
Suggested Bolt Lengths - 3/4" A325, F1852, A490
Suggested Bolt Lengths - 7/8" A325, F1852, A490
Suggested Bolt Lengths - 1" A325, F1852, A490
Table L-1. Approximate Bolt Length - A325, F1852, A490