Contact Apex Fasteners

APEX offers full-service design, engineering and manufacturing to your specifications. Our custom fasteners have enjoyed great success supplying all types and sizes of businesses in most sectors of industry.
Contact Apex Fasteners with your hardware requirements

Authorized Distributor for:

NFP Series

                                                                                                                                                                    
Part
Number
Thread
Size
Metric
Equiv.
A B C Minimum
Sheet
HoleSize
In Sheet
Minimum
Boss Dia.
NFP440 4-40 M3x0.5 .187 .225 .181 .240 .187 .500
NFP632 6-32 M3.5x0.6 .187 .225 .181 .240 .187 .500
NFP832 8-32 M4x0.7 .250 .260 .238 .275 .250 .625
NFP1024 10-24 --- .250 .260 .238 .275 .250 .625
NFP1032 10-32 M5x0.8 .250 .260 .238 .275 .250 .625
NFP25020 1/4-20 M6x1.0 .312 .308 .295 .328 .312 .750
NFP25028 1/4-28 --- .312 .308 .295 .328 .312 .750
NFP31218 5/16-18 M8x1.25 .375 .360 .360 .380 .375 .950
NFP31224 5/16-24 --- .375 .360 .360 .380 .375 .950

Notes:
Thread spec per MIL-S-7742
300 Series Stainless Steel per MIL-S-7720 ASTM A581/A582
Brass per ASTM-B-16
Aluminum - 6061-T6 per QQ-A-225/8, QQ-A-200/8, QQ-A-225/10
300 Series Stainless Steel per MIL-S-7720 ASTM A581/A582
Dimensional Limits plus or minus .005, unless specified.
Installation Hole Tolerance +.003 / -.000
Class 3A/4H screw must pass with finger torque, but basic go gauge may stop at last thread. (Applies to Stainless Steel Only
)

Part Number Example

NFPA-632

Series: NFP, Material: Alum, Thread 6-32


APEX FASTENERS, Inc - 15858 Business Center Drive - Irwindale, CA 91706 USA
APEX Fasteners supplies standard and custom screws, nut retainers, shoulder screws, plastites and taptites, all types of rivets, spring steel fasteners and special stampings, sems screws in standard, fractional or metric to electronics, aviation and other OEM industries worldwide. ApexFasteners.com custom manufactures screw machine components for electronic enclosure hardware as well as cold forming and cold headed specials for assembly and production requirements.
Tel: (626) 962-2219 - info@apexfasteners.com
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