Model: 16991-92-C-3-BUNBRAKO

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.178 inches and 0.198 inches

Fastener Length

Between 0.178 inches and 0.198 inches

Head Style

Roof

Head Diameter

Between 0.187 inches and 0.207 inches

Head Height

Between 0.054 inches and 0.074 inches

Internal Drive Style

Hexagon

Thread Diameter

0.086 inches

Width Across Flats

Between 0.040 inches and 0.060 inches

Thready Qty Per Inch (tpi)

Hardness Rating

36.0 rockwell c and 45.0 rockwell c

Countersink Angle

Between 80.0 degrees and 82.0 degrees

Material

Steel

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

Thread Series Designator

Unc

NSN

5305-01-256-5790

Part Number

16991-92-C-3-BUNBRAKO

Description

Screw,cap,socket Head

CAGE

56878

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part 16991-92-C-3-BUNBRAKO NSN 5305-01-256-5790

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16282

FIIG:

A003B0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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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