Model: S1259

Internally Relieved Body Bolt

Properties:

Threads Per Inch
28 concentric hole
Threads Per Inch
28 counterbore
Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.875 inches
Fastener Length
3.375 inches
Head Style
Dee chamfer
Head Diameter
1.125 inches
Head Height
0.250 inches
Distance From Centerline To Flat
Between 0.432 inches and 0.442 inches
Shank Unthreaded Hole Diameter
0.136 inches first hole
Concentric Hole Depth
1.875 inches
Concentric Hole Diameter
0.219 inches
Internal Thread Length
0.250 inches counterbore
Thread Diameter
0.625 inches
Thread Series
Unf concentric hole
Thread Series
Unf counterbore
Internal Thread Direction
Right-hand counterbore
Thready Qty Per Inch (tpi)
18
Thread Size
0.250 inches concentric hole
Thread Size
0.250 inches counterbore
Distance From Head Largest Bearing Surface To Shank Hole Center
3.188 inches first hole
Internal Thread Class
2b counterbore
Material
Steel
Style Designator
Counterbore threaded
Thread Series Designator
Unf
NSN
5306-00-637-0203
Part Number
S1259
Description
Bolt,internally Relieved Body
CAGE
76255

An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see bolt, fluid passage.

Part S1259 NSN 5306-00-637-0203

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06676
FIIG:
A003B0
Concept No.:
App. Key:
BN
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment

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