MIL-DTL-10884H
3.4 Finish. The finish, as specified (see 6.2), shall be in accordance with the applicable finish
requirements specified and shall apply to all metal fastener parts, except:
a. At the option of the contractor, the socket spring of style 2 and 2A may have either a
natural finish or be finished to match the socket, provided such finishing does not adversely affect
the function of the fastener.
b. At the option of the contractor, the following component parts of fasteners may have a
natural finish:
Applicable styles
Component part
Stud eyelet
1, 1B (except 1B, size 3 alternates)
Button eyelet
2, 2A, 4
Button reinforcement (brass)
2
Threaded insert (brass)
4
c. Fastener components that are not made of brass shall be corrosion resistant steel (CRES).
Finished snap fasteners shall be free from scratch, dig, abrasion exposing bare metal and area of
corrosion.
3.4.1 Finish 1, bright brass. All component parts of the fasteners, except for the optional
provisions specified in 3.4, shall be given a bright brass finish produced by a chemical or
mechanical commercial finished process. Button cap shells of style 2, 2A or 4 may be given a
coat of clear lacquer.
3.4.2 Finish 2, black, chemical finish.
3.4.2.1 Style 1 and 1B fasteners. The finish on the socket and the stud body shall be a dull
black chemical finish in accordance with ASTM F1135. Glossiness of the head of the stud body
due to polishing action in handling is permissible. Other components of the fastener, except for
the optional provision specified in 3.4, shall be given a commercial dark oxide finish (see 6.3).
3.4.2.2 Style2, 2A, 3 or 4 fasteners. The black chemical finish of all components except the
cap shells of the buttons of style 2, 2A, 3 and 4 fasteners shall be given a commercial dark oxide
finish (see 6.3). The black chemical finish of the of the cap shells of buttons in style 2, 2A or 4
fasteners shall conform to ASTM F1135 except that the gloss shall be no more than 40. The
finish of button cap shells of style 2, 2A and 4 fasteners may at the option of the contractor, be a
black enamel finish specified in 3.4.5.
3.4.2.2.2.1 Appearance. The enamel shall be smooth and free of sags, runs and streaks.
3.4.3 Finish 3, nickel plate. All components parts of Style 1, 2, 2A, 3 and 4 fasteners shall
have no visible sign of non-coverage.
3.4.4 Finish 4, bright chrome plate.
3.4.4.1 Style 1 fasteners. All components of the fasteners, except for the optional provisions
specified in 3.4, shall be given a bright chrome plated finish conforming to class 1, type 1 of
SAE-AMS-QQ-C-320. The nickel undercoat shall conform to class II of SAE-AMS-QQ-N-290
except the thickness of the nickel plate shall be not less than .0001 inch.
3.4.4.2 Style 2 and 2A fasteners. The button cap shell shall be given a bright nickel chrome
plated finish conforming to class I, type 1 of SAE-AMS-QQ-C-320. The nickel undercoat shall
conform to class II of SAE-AMS-QQ-N-290 except the thickness of the nickel plate shall not be
less than .0001 inch. All other component parts, except for the optional provisions specified in
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