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  • Special Screws
  • Security screws, Tamper Resistant Screws

SRHFS-M4

Hex Socket Flat Head Bolts (with Pin)

  • Tamper Resistance

Dimension Drawing

SRHFSHex Socket Flat Head Bolts (with Pin)寸法図

Specs/CAD

Select

M (Coarse)
Nominal of Thread
All
M4
L
All
8
10
12
16
20
25
30

Unit : mm

Part Number M (Coarse)
Nominal of Thread
Pitch L D1 L1 B Applicable Wrench Type Applicable Bit Type Qty per Pack Mass
(g)
CAD
Download
RFQ
Bit Driver
SRHFS-M4-8 M4 0.7 8 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.2 CAD RFQ
SRHFS-M4-10 M4 0.7 10 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.4 CAD RFQ
SRHFS-M4-12 M4 0.7 12 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.5 CAD RFQ
SRHFS-M4-16 M4 0.7 16 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.8 CAD RFQ
SRHFS-M4-20 M4 0.7 20 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 2.2 CAD RFQ
SRHFS-M4-25 M4 0.7 25 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 2.5 CAD RFQ
SRHFS-M4-30 M4 0.7 30 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 2.9 CAD RFQ
Part Number M (Coarse)
Nominal of Thread
Pitch L D1 L1 B Applicable Wrench Type Applicable Bit Type Qty per Pack Mass
(g)
CAD
Download
RFQ
Bit Driver
SRHFS-M4-8 M4 0.7 8 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.2 CAD RFQ
SRHFS-M4-10 M4 0.7 10 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.4 CAD RFQ
SRHFS-M4-12 M4 0.7 12 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.5 CAD RFQ
SRHFS-M4-16 M4 0.7 16 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.8 CAD RFQ
SRHFS-M4-20 M4 0.7 20 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 2.2 CAD RFQ
SRHFS-M4-25 M4 0.7 25 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 2.5 CAD RFQ
SRHFS-M4-30 M4 0.7 30 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 2.9 CAD RFQ
Part Number M (Coarse)
Nominal of Thread
Pitch L D1 L1 B Applicable Wrench Type Applicable Bit Type Qty per Pack Mass
(g)
CAD
Download
RFQ
Bit Driver
SRHFS-M4-8 M4 0.7 8 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.2 CAD RFQ
SRHFS-M4-10 M4 0.7 10 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.4 CAD RFQ
SRHFS-M4-12 M4 0.7 12 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.5 CAD RFQ
SRHFS-M4-16 M4 0.7 16 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.8 CAD RFQ
SRHFS-M4-20 M4 0.7 20 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 2.2 CAD RFQ
SRHFS-M4-25 M4 0.7 25 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 2.5 CAD RFQ
SRHFS-M4-30 M4 0.7 30 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 2.9 CAD RFQ
Part Number M (Coarse)
Nominal of Thread
Pitch L D1 L1 B Applicable Wrench Type Applicable Bit Type Qty per Pack Mass
(g)
CAD
Download
RFQ
Bit Driver
SRHFS-M4-8 M4 0.7 8 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.2 CAD RFQ
SRHFS-M4-10 M4 0.7 10 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.4 CAD RFQ
SRHFS-M4-12 M4 0.7 12 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.5 CAD RFQ
SRHFS-M4-16 M4 0.7 16 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 1.8 CAD RFQ
SRHFS-M4-20 M4 0.7 20 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 2.2 CAD RFQ
SRHFS-M4-25 M4 0.7 25 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 2.5 CAD RFQ
SRHFS-M4-30 M4 0.7 30 8 2.3 2.5 SRH-2.5 SRHB-2.5 SRD-6.35 10 2.9 CAD RFQ

● When purchasing less volume than one full bag, a separate handling fee is charged. For details, see the Sold Separately Service.

Related Services

Material/Finish

SRHFS
Main Body Equivalent to SUS304
Strength Class Equivalent to A2-50

Application

Machinery / Tools / Equipment / Devices disassembly prevention/ Tampering prevention / Theft prevention for outdoor facilities /
Security measures / Safety measures

Characteristics

  • Flat head bolts with pin at the center of their socket.
  • This prevents mounting and removing with regular tools.
  • Install and remove with SRH Dedicated Wrench or SRHB Dedicated Bit and SRD Dedicated Magnetic Screwdriver together.

Related Products

SRH dedicated wrenches are available.
SRH

SRHFSHex Socket Flat Head Bolts (with Pin)

SRHB applicable bits are available.
SRHB

SRHFSHex Socket Flat Head Bolts (with Pin)

Dedicated magnetic screwdrivers SRD are available.
SRD

SRHFSHex Socket Flat Head Bolts (with Pin)


Related Services

Product List

Click here to see SRHFS

Click here to see Security screws, Tamper Resistant Screws