Bolt kit
Dress up bolts, anyone? Datsun bolts are carbon steel. When substituting stainless steel bolts, be aware that SS is not as strong. That poses no problem for some exterior bolts, but SS should not be used for critical bolts - 316 Stainless has a lower tensile yield than even low carbon steel.
NES Bolt Types
Nissan Engineering Section specifications. Also see: NES Part Numbers.
* 08 NES part prefix * 11 bolt, low carbon steel * 12 bolt, medium carbon steel (grade 8.8?) * 13 bolt, alloy steel (grade 10.9?) * 9111 hex nut, low carbon steel * 9151 lock washer * 9154 plain washer
For example, Nissan Part Number:
08110-85510 OIL PUMP BOLT 11 low-carbon steel 0-8 M8 thread size 55 mm long
Engine Exterior
Kit
The following nuts & bolts are all low carbon steel
Buy the Kit from Bprojects online Web store A Series Metric Engine Bolt Kit
Alternatively, 316 Stainless Steel is OK for these low-torque engine bolt parts. 316 (A4 stainless) stainless will not corrode, while 304 stainless will tarnish after some time.
OIL PAN 08110-61410 BOLT M6 [x 14] FIXING OIL PAN (12) (except GX) 08911-1062A NUT M6 FIXING OIL PAN [M6] (4) 08915-13610 WASHER-LOCK FIXING OIL PAN [M6] (16)
ROCKER COVER 08310-61612 SCREW-MACHINE FIXING ROCKER COVER [M6 X 16] (6) 08915-13610 WASHER-LOCK FIXING ROCKER COVER (6)
FRONT COVER (timing cover) 08110-64010 BOLT-HEX [M6 x 40] (6) 08915-1361A WASHER-LOCK [M6] (6)
WATER OUTLET 31139-49006 BOLT-HEX M8 (2) 08915-1381A WASHER-SPRING [M8] (2)
FUEL PUMP 08911-10810 NUT-HEX M8 (2) 08915-13810 WASHER-LOCK M8 (2) 00915-41510 WASHER-PLAIN 5/16 (2) WATER PUMP 08110-45010 BOLT [M8 x 45] (2) 08911-10810 NUT [M8] (3) 08915-13810 WASHER-lock [M8] (5)
OIL PUMP torque: 1.1-1.7 kg-m (8-12 ft-lb) * 316 stainless is OK, DO NOT OVERTORQUE 15036-18000 BOLT-OIL PUMP [M8 x 70mm] (2) [check length] 08110-85510 BOLT [M8 x 55mm] (1) 08915-13810 WASHER-LOCK [M8] (3)
Oil pan 4 nuts & 12 bolts
Rocker cover 6 machine screws (round head, phillips screw)
Timing Cover 6 bolts
https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/A12c.jpg
Fuel pump 2 nuts
https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/A12b.jpg
water pump 2 nuts & 3 bolts
Oil pump 2 long, 1 short bolt
all these bolts are visible
Other
ALTERNATOR BRACKET 08110-81610 BOLT, fixing adjusting bar to head [M8 x 16] B110 08120-82062 BOLT, to head [M8 x 20] new A12 08915-13810 WASHER-lock, fixing adjusting bar [M8] 23164-H0100 BOLT-SETTING (fitting Alternator) 
DISTRIBUTOR HOLD DOWN new A12 08360-61226 [M6 x 12 machine screw, hex head] B110 08110-61210 BOLT-HEX FIXING DISTRIBUTOR TO BLOCK [M6 x 12] 08915-13610 WASHER-LOCK FIXING DISTRIBUTOR 08915-43610 WASHER-PLAIN FIXING DISTRIBUTOR
Engine Mounts 08911-20810 NUT-HEX [M8] (8) * FIXING INSULATOR TO BRACKET (4) * FIXING BRACKET TO ENGINE (4) 08915-53810 WASHER-PLAIN [M8] (8) 08915-23810 WASHER-LOCK [M8] (8)
Engine Mounts - 2 nuts each (insulators: 2 nuts)
Fuel Rail bolts 31139-49006 BOLT, front [M8] 08915-13810 WASHER-LOCK [M8] 08120-61210 BOLT, sides [M6 x 12] (2) 08915-13610 WASHER-LOCK [M6] (2)
Fuel Rail - 3 bolts
Air Cleaner
AIR CLEANER SUPPORT 08363-61214 M6 x 12 MACHINE SCREW WITH LOCK WASHER (5)
https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/USA/012-01a.png https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/B110_air_cleaner_bolts.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/B110_air_cleaner.jpg 
Manifold
MANIFOLD 08911-10810 NUT CYLINDER HEAD TO MANIFOLD [M8] (9) 08915-13810 WASHER-LOCK [M8] (9) New-style (all A14/A15 and A12.7908-) take 2 additional
- Note: the bottom row of nuts is normally not visible
- Old-style Manifold 5 bolts across the top
- new-style Manifold 7 bolts across the top
- non-1200 manifolds take differing numbers and lengths of studs. See Manifold#Studs
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